151922961 has 12 divisors (see below), whose sum is σ = 219711492. Its totient is φ = 101158656.

The previous prime is 151922959. The next prime is 151922977. The reversal of 151922961 is 169229151.

It can be written as a sum of positive squares in 2 ways, for example, as 83612736 + 68310225 = 9144^2 + 8265^2 .

It is not a de Polignac number, because 151922961 - 2¹ = 151922959 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (151922921) 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, 2136 + ... + 17561.

It is an arithmetic number, because the mean of its divisors is an integer number (18309291).

Almost surely, 2^151922961 is an apocalyptic number.

It is an amenable number.

151922961 is a deficient number, since it is larger than the sum of its proper divisors (67788531).

151922961 is a wasteful number, since it uses less digits than its factorization.

151922961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20560 (or 20557 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 151922961 is about 12325.7032659398. The cubic root of 151922961 is about 533.5901517906.

The spelling of 151922961 in words is "one hundred fifty-one million, nine hundred twenty-two thousand, nine hundred sixty-one".