45645234157 has 2 divisors, whose sum is σ = 45645234158. Its totient is φ = 45645234156.

The previous prime is 45645234133. The next prime is 45645234161. The reversal of 45645234157 is 75143254654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24380011881 + 21265222276 = 156141^2 + 145826^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45645234157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45645235157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22822617078 + 22822617079.

It is an arithmetic number, because the mean of its divisors is an integer number (22822617079).

Almost surely, 2^45645234157 is an apocalyptic number.

It is an amenable number.

45645234157 is a deficient number, since it is larger than the sum of its proper divisors (1).

45645234157 is an equidigital number, since it uses as much as digits as its factorization.

45645234157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016000, while the sum is 46.

The spelling of 45645234157 in words is "forty-five billion, six hundred forty-five million, two hundred thirty-four thousand, one hundred fifty-seven".