451642961 has 32 divisors (see below), whose sum is σ = 602525952. Its totient is φ = 327720960.

The previous prime is 451642957. The next prime is 451642981. The reversal of 451642961 is 169246154.

It is not a de Polignac number, because 451642961 - 2² = 451642957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (451642981) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125195 + ... + 128751.

It is an arithmetic number, because the mean of its divisors is an integer number (18828936).

Almost surely, 2^451642961 is an apocalyptic number.

It is an amenable number.

451642961 is a deficient number, since it is larger than the sum of its proper divisors (150882991).

451642961 is a wasteful number, since it uses less digits than its factorization.

451642961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689.

The product of its digits is 51840, while the sum is 38.

The square root of 451642961 is about 21251.8931156732. The cubic root of 451642961 is about 767.2409045257.

The spelling of 451642961 in words is "four hundred fifty-one million, six hundred forty-two thousand, nine hundred sixty-one".