138650310 has 24 divisors (see below), whose sum is σ = 360491040. Its totient is φ = 36973392.

The previous prime is 138650299. The next prime is 138650327. The reversal of 138650310 is 13056831.

138650310 is a `hidden beast` number, since 1 + 3 + 8 + 650 + 3 + 1 + 0 = 666.

It is a super-2 number, since 2×138650310² = 38447816926192200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 770190 + ... + 770369.

It is an arithmetic number, because the mean of its divisors is an integer number (15020460).

Almost surely, 2^138650310 is an apocalyptic number.

138650310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138650310 is an abundant number, since it is smaller than the sum of its proper divisors (221840730).

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

138650310 is a wasteful number, since it uses less digits than its factorization.

138650310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540572 (or 1540569 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 138650310 is about 11774.9866241962. The cubic root of 138650310 is about 517.5753863431.

The spelling of 138650310 in words is "one hundred thirty-eight million, six hundred fifty thousand, three hundred ten".