138597230 has 8 divisors (see below), whose sum is σ = 249475032. Its totient is φ = 55438888.

The previous prime is 138597223. The next prime is 138597253. The reversal of 138597230 is 32795831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6929852 + ... + 6929871.

It is an arithmetic number, because the mean of its divisors is an integer number (31184379).

Almost surely, 2^138597230 is an apocalyptic number.

138597230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138597230 is a deficient number, since it is larger than the sum of its proper divisors (110877802).

138597230 is a wasteful number, since it uses less digits than its factorization.

138597230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13859730.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 138597230 is about 11772.7324780613. The cubic root of 138597230 is about 517.5093294933.

The spelling of 138597230 in words is "one hundred thirty-eight million, five hundred ninety-seven thousand, two hundred thirty".