138087626 has 8 divisors (see below), whose sum is σ = 212729700. Its totient is φ = 67177728.

The previous prime is 138087601. The next prime is 138087629. The reversal of 138087626 is 626780831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 136866601 + 1221025 = 11699^2 + 1105^2 .

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

It is not an unprimeable number, because it can be changed into a prime (138087629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 932951 + ... + 933098.

Almost surely, 2^138087626 is an apocalyptic number.

138087626 is a deficient number, since it is larger than the sum of its proper divisors (74642074).

138087626 is a wasteful number, since it uses less digits than its factorization.

138087626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866088.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 138087626 is about 11751.0691428482. The cubic root of 138087626 is about 516.8742790104.

The spelling of 138087626 in words is "one hundred thirty-eight million, eighty-seven thousand, six hundred twenty-six".