151642931 has 8 divisors (see below), whose sum is σ = 165763584. Its totient is φ = 137578120.

The previous prime is 151642927. The next prime is 151642951. The reversal of 151642931 is 139246151.

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

It is a cyclic number.

It is not a de Polignac number, because 151642931 - 2² = 151642927 is a prime.

It is a super-2 number, since 2×151642931² = 45991157044541522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151642901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8171 + ... + 19236.

It is an arithmetic number, because the mean of its divisors is an integer number (20720448).

Almost surely, 2^151642931 is an apocalyptic number.

151642931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

151642931 is a deficient number, since it is larger than the sum of its proper divisors (14120653).

151642931 is a wasteful number, since it uses less digits than its factorization.

151642931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27921.

The product of its digits is 6480, while the sum is 32.

The square root of 151642931 is about 12314.3384312760. The cubic root of 151642931 is about 533.2621058091.

The spelling of 151642931 in words is "one hundred fifty-one million, six hundred forty-two thousand, nine hundred thirty-one".