138031201 has 16 divisors (see below), whose sum is σ = 176745600. Its totient is φ = 104647680.

The previous prime is 138031183. The next prime is 138031207. The reversal of 138031201 is 102130831.

It is a cyclic number.

It is not a de Polignac number, because 138031201 - 2⁹ = 138030689 is a prime.

It is a super-2 number, since 2×138031201² = 38105224899004802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138031207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21376 + ... + 27073.

It is an arithmetic number, because the mean of its divisors is an integer number (11046600).

Almost surely, 2^138031201 is an apocalyptic number.

138031201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

138031201 is a deficient number, since it is larger than the sum of its proper divisors (38714399).

138031201 is a wasteful number, since it uses less digits than its factorization.

138031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48504.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 138031201 is about 11748.6680521666. The cubic root of 138031201 is about 516.8038681529.

The spelling of 138031201 in words is "one hundred thirty-eight million, thirty-one thousand, two hundred one".