956642945 has 4 divisors (see below), whose sum is σ = 1147971540. Its totient is φ = 765314352.

The previous prime is 956642941. The next prime is 956642959. The reversal of 956642945 is 549246659.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 353891344 + 602751601 = 18812^2 + 24551^2 .

It is a cyclic number.

It is not a de Polignac number, because 956642945 - 2² = 956642941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 956642893 and 956642902.

It is not an unprimeable number, because it can be changed into a prime (956642941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95664290 + ... + 95664299.

It is an arithmetic number, because the mean of its divisors is an integer number (286992885).

Almost surely, 2^956642945 is an apocalyptic number.

It is an amenable number.

956642945 is a deficient number, since it is larger than the sum of its proper divisors (191328595).

956642945 is a wasteful number, since it uses less digits than its factorization.

956642945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191328594.

The product of its digits is 2332800, while the sum is 50.

The square root of 956642945 is about 30929.6450836410. The cubic root of 956642945 is about 985.3335965406. Note that the first 3 decimals are identical.

The spelling of 956642945 in words is "nine hundred fifty-six million, six hundred forty-two thousand, nine hundred forty-five".