45445157 has 2 divisors, whose sum is σ = 45445158. Its totient is φ = 45445156.

The previous prime is 45445121. The next prime is 45445177. The reversal of 45445157 is 75154454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44970436 + 474721 = 6706^2 + 689^2 .

It is a cyclic number.

It is not a de Polignac number, because 45445157 - 2⁸ = 45444901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45445177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22722578 + 22722579.

It is an arithmetic number, because the mean of its divisors is an integer number (22722579).

Almost surely, 2^45445157 is an apocalyptic number.

It is an amenable number.

45445157 is a deficient number, since it is larger than the sum of its proper divisors (1).

45445157 is an equidigital number, since it uses as much as digits as its factorization.

45445157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56000, while the sum is 35.

The square root of 45445157 is about 6741.3023222520. The cubic root of 45445157 is about 356.8583551462.

The spelling of 45445157 in words is "forty-five million, four hundred forty-five thousand, one hundred fifty-seven".