945071972 has 12 divisors (see below), whose sum is σ = 1781097276. Its totient is φ = 436187040.

The previous prime is 945071969. The next prime is 945071987. The reversal of 945071972 is 279170549.

It can be written as a sum of positive squares in 2 ways, for example, as 36893476 + 908178496 = 6074^2 + 30136^2 .

It is a super-2 number, since 2×945071972² = 1786322064519937568, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9087179 + ... + 9087282.

It is an arithmetic number, because the mean of its divisors is an integer number (148424773).

Almost surely, 2^945071972 is an apocalyptic number.

It is an amenable number.

945071972 is a deficient number, since it is larger than the sum of its proper divisors (836025304).

945071972 is a wasteful number, since it uses less digits than its factorization.

945071972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18174478 (or 18174476 counting only the distinct ones).

The product of its (nonzero) digits is 158760, while the sum is 44.

The square root of 945071972 is about 30742.0229002582. The cubic root of 945071972 is about 981.3448051421.

The spelling of 945071972 in words is "nine hundred forty-five million, seventy-one thousand, nine hundred seventy-two".