152013681 has 6 divisors (see below), whose sum is σ = 219575330. Its totient is φ = 101342448.

The previous prime is 152013607. The next prime is 152013703. The reversal of 152013681 is 186310251.

152013681 is a `hidden beast` number, since 1 + 520 + 136 + 8 + 1 = 666.

152013681 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 only one way, i.e., 124545600 + 27468081 = 11160^2 + 5241^2 .

It is not a de Polignac number, because 152013681 - 2²³ = 143625073 is a prime.

It is a super-2 number, since 2×152013681² = 46216318422339522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152015681) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8445196 + ... + 8445213.

Almost surely, 2^152013681 is an apocalyptic number.

It is an amenable number.

152013681 is a deficient number, since it is larger than the sum of its proper divisors (67561649).

152013681 is a wasteful number, since it uses less digits than its factorization.

152013681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16890415 (or 16890412 counting only the distinct ones).

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

The square root of 152013681 is about 12329.3828312694. The cubic root of 152013681 is about 533.6963408443.

The spelling of 152013681 in words is "one hundred fifty-two million, thirteen thousand, six hundred eighty-one".