138450060 has 240 divisors, whose sum is σ = 514704960. Its totient is φ = 30481920.

The previous prime is 138450043. The next prime is 138450077. The reversal of 138450060 is 60054831.

138450060 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (138450043) and next prime (138450077).

It is a super-2 number, since 2×138450060² = 38336838228007200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Saint-Exupery number, since it is equal to the product of the sides of a Pythagorean triangle: 1263 × 87 × 1260.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 328650 + ... + 329070.

It is an arithmetic number, because the mean of its divisors is an integer number (2144604).

Almost surely, 2^138450060 is an apocalyptic number.

138450060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138450060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (257352480).

138450060 is an abundant number, since it is smaller than the sum of its proper divisors (376254900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138450060 is a wasteful number, since it uses less digits than its factorization.

138450060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 138450060 is about 11766.4803573541. The cubic root of 138450060 is about 517.3260915322.

The spelling of 138450060 in words is "one hundred thirty-eight million, four hundred fifty thousand, sixty".