260151138 has 24 divisors (see below), whose sum is σ = 607019868. Its totient is φ = 80046432.

The previous prime is 260151071. The next prime is 260151139. The reversal of 260151138 is 831151062.

260151138 is a `hidden beast` number, since 2 + 601 + 51 + 1 + 3 + 8 = 666.

260151138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 252714609 + 7436529 = 15897^2 + 2727^2 .

It is a super-2 number, since 2×260151138² = 135357229205390088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (260151139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 555645 + ... + 556112.

Almost surely, 2^260151138 is an apocalyptic number.

260151138 is an abundant number, since it is smaller than the sum of its proper divisors (346868730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

260151138 is a wasteful number, since it uses less digits than its factorization.

260151138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111778 (or 1111775 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 260151138 is about 16129.2014061453. The cubic root of 260151138 is about 638.3740775886.

The spelling of 260151138 in words is "two hundred sixty million, one hundred fifty-one thousand, one hundred thirty-eight".