45202921 has 2 divisors, whose sum is σ = 45202922. Its totient is φ = 45202920.

The previous prime is 45202903. The next prime is 45202943. The reversal of 45202921 is 12920254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45158400 + 44521 = 6720^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 45202921 - 2¹³ = 45194729 is a prime.

It is not a weakly prime, because it can be changed into another prime (45202901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22601460 + 22601461.

It is an arithmetic number, because the mean of its divisors is an integer number (22601461).

Almost surely, 2^45202921 is an apocalyptic number.

It is an amenable number.

45202921 is a deficient number, since it is larger than the sum of its proper divisors (1).

45202921 is an equidigital number, since it uses as much as digits as its factorization.

45202921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 45202921 is about 6723.3117583524. The cubic root of 45202921 is about 356.2231720435.

The spelling of 45202921 in words is "forty-five million, two hundred two thousand, nine hundred twenty-one".