138254030 has 32 divisors (see below), whose sum is σ = 269637984. Its totient is φ = 50835456.

The previous prime is 138254023. The next prime is 138254041. The reversal of 138254030 is 30452831.

138254030 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×138254030² = 38228353622481800, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2147 + ... + 16766.

It is an arithmetic number, because the mean of its divisors is an integer number (8426187).

Almost surely, 2^138254030 is an apocalyptic number.

138254030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138254030 is a deficient number, since it is larger than the sum of its proper divisors (131383954).

138254030 is a wasteful number, since it uses less digits than its factorization.

138254030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18980.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 138254030 is about 11758.1473880880. The cubic root of 138254030 is about 517.0818173300.

The spelling of 138254030 in words is "one hundred thirty-eight million, two hundred fifty-four thousand, thirty".