45605657 has 2 divisors, whose sum is σ = 45605658. Its totient is φ = 45605656.

The previous prime is 45605633. The next prime is 45605663. The reversal of 45605657 is 75650654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44342281 + 1263376 = 6659^2 + 1124^2 .

It is a cyclic number.

It is not a de Polignac number, because 45605657 - 2¹² = 45601561 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 45605657.

It is not a weakly prime, because it can be changed into another prime (45605687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22802828 + 22802829.

It is an arithmetic number, because the mean of its divisors is an integer number (22802829).

Almost surely, 2^45605657 is an apocalyptic number.

It is an amenable number.

45605657 is a deficient number, since it is larger than the sum of its proper divisors (1).

45605657 is an equidigital number, since it uses as much as digits as its factorization.

45605657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 45605657 is about 6753.1960581639. The cubic root of 45605657 is about 357.2779705996.

The spelling of 45605657 in words is "forty-five million, six hundred five thousand, six hundred fifty-seven".