138025256 has 16 divisors (see below), whose sum is σ = 260536500. Its totient is φ = 68548864.

The previous prime is 138025241. The next prime is 138025267. The reversal of 138025256 is 652520831.

It can be written as a sum of positive squares in 2 ways, for example, as 96628900 + 41396356 = 9830^2 + 6434^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56705 + ... + 59088.

Almost surely, 2^138025256 is an apocalyptic number.

It is an amenable number.

138025256 is a deficient number, since it is larger than the sum of its proper divisors (122511244).

138025256 is a wasteful number, since it uses less digits than its factorization.

138025256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115948 (or 115944 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 138025256 is about 11748.4150420386. The cubic root of 138025256 is about 516.7964484703.

The spelling of 138025256 in words is "one hundred thirty-eight million, twenty-five thousand, two hundred fifty-six".