138201356 has 24 divisors (see below), whose sum is σ = 254306640. Its totient is φ = 65620800.

The previous prime is 138201331. The next prime is 138201377. The reversal of 138201356 is 653102831.

It is a super-2 number, since 2×138201356² = 38199229600477472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

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 7 ways as a sum of consecutive naturals, for example, 2690 + ... + 16841.

It is an arithmetic number, because the mean of its divisors is an integer number (10596110).

Almost surely, 2^138201356 is an apocalyptic number.

It is an amenable number.

138201356 is a deficient number, since it is larger than the sum of its proper divisors (116105284).

138201356 is a wasteful number, since it uses less digits than its factorization.

138201356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19625 (or 19623 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 138201356 is about 11755.9072810226. The cubic root of 138201356 is about 517.0161405768.

The spelling of 138201356 in words is "one hundred thirty-eight million, two hundred one thousand, three hundred fifty-six".