152040681 has 18 divisors (see below), whose sum is σ = 237809598. Its totient is φ = 93562560.

The previous prime is 152040619. The next prime is 152040697. The reversal of 152040681 is 186040251.

It can be written as a sum of positive squares in 3 ways, for example, as 2223081 + 149817600 = 1491^2 + 12240^2 .

It is not a de Polignac number, because 152040681 - 2¹⁷ = 151909609 is a prime.

It is a super-2 number, since 2×152040681² = 46232737357887522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (152040601) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 48460 + ... + 51501.

Almost surely, 2^152040681 is an apocalyptic number.

It is an amenable number.

152040681 is a deficient number, since it is larger than the sum of its proper divisors (85768917).

152040681 is a wasteful number, since it uses less digits than its factorization.

152040681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99993 (or 99977 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 152040681 is about 12330.4777279715. The cubic root of 152040681 is about 533.7279365710.

The spelling of 152040681 in words is "one hundred fifty-two million, forty thousand, six hundred eighty-one".