45932221 has 2 divisors, whose sum is σ = 45932222. Its totient is φ = 45932220.

The previous prime is 45932209. The next prime is 45932261. The reversal of 45932221 is 12223954.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31024900 + 14907321 = 5570^2 + 3861^2 .

It is a cyclic number.

It is not a de Polignac number, because 45932221 - 2⁷ = 45932093 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45932221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45932261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22966110 + 22966111.

It is an arithmetic number, because the mean of its divisors is an integer number (22966111).

Almost surely, 2^45932221 is an apocalyptic number.

It is an amenable number.

45932221 is a deficient number, since it is larger than the sum of its proper divisors (1).

45932221 is an equidigital number, since it uses as much as digits as its factorization.

45932221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 45932221 is about 6777.3314069772. The cubic root of 45932221 is about 358.1287184216.

The spelling of 45932221 in words is "forty-five million, nine hundred thirty-two thousand, two hundred twenty-one".