45172657 has 2 divisors, whose sum is σ = 45172658. Its totient is φ = 45172656.

The previous prime is 45172651. The next prime is 45172663. The reversal of 45172657 is 75627154.

45172657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (45172651) and next prime (45172663).

It can be written as a sum of positive squares in only one way, i.e., 22667121 + 22505536 = 4761^2 + 4744^2 .

It is a cyclic number.

It is not a de Polignac number, because 45172657 - 2³ = 45172649 is a prime.

It is not a weakly prime, because it can be changed into another prime (45172651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22586328 + 22586329.

It is an arithmetic number, because the mean of its divisors is an integer number (22586329).

Almost surely, 2^45172657 is an apocalyptic number.

It is an amenable number.

45172657 is a deficient number, since it is larger than the sum of its proper divisors (1).

45172657 is an equidigital number, since it uses as much as digits as its factorization.

45172657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58800, while the sum is 37.

The square root of 45172657 is about 6721.0607049780. The cubic root of 45172657 is about 356.1436554645.

The spelling of 45172657 in words is "forty-five million, one hundred seventy-two thousand, six hundred fifty-seven".