152966681 has 8 divisors (see below), whose sum is σ = 178387200. Its totient is φ = 131114004.

The previous prime is 152966647. The next prime is 152966687. The reversal of 152966681 is 186669251.

It is a de Polignac number, because none of the positive numbers 2^k-152966681 is a prime.

It is a super-2 number, since 2×152966681² = 46797610992311522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152966687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222641 + ... + 223326.

It is an arithmetic number, because the mean of its divisors is an integer number (22298400).

Almost surely, 2^152966681 is an apocalyptic number.

It is an amenable number.

152966681 is a deficient number, since it is larger than the sum of its proper divisors (25420519).

152966681 is an frugal number, since it uses more digits than its factorization.

152966681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445988 (or 445974 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 152966681 is about 12367.9699627708. The cubic root of 152966681 is about 534.8092964586.

The spelling of 152966681 in words is "one hundred fifty-two million, nine hundred sixty-six thousand, six hundred eighty-one".