45023969 has 2 divisors, whose sum is σ = 45023970. Its totient is φ = 45023968.

The previous prime is 45023963. The next prime is 45023983. The reversal of 45023969 is 96932054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26214400 + 18809569 = 5120^2 + 4337^2 .

It is a cyclic number.

It is not a de Polignac number, because 45023969 - 2²⁴ = 28246753 is a prime.

It is a super-2 number, since 2×45023969² = 4054315569025922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45023963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22511984 + 22511985.

It is an arithmetic number, because the mean of its divisors is an integer number (22511985).

Almost surely, 2^45023969 is an apocalyptic number.

It is an amenable number.

45023969 is a deficient number, since it is larger than the sum of its proper divisors (1).

45023969 is an equidigital number, since it uses as much as digits as its factorization.

45023969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 45023969 is about 6709.9902384430. The cubic root of 45023969 is about 355.7524712217.

The spelling of 45023969 in words is "forty-five million, twenty-three thousand, nine hundred sixty-nine".