45118250731 has 2 divisors, whose sum is σ = 45118250732. Its totient is φ = 45118250730.

The previous prime is 45118250729. The next prime is 45118250743. The reversal of 45118250731 is 13705281154.

45118250731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45118250731 - 2¹ = 45118250729 is a prime.

It is a super-2 number, since 2×45118250731² (a number of 22 digits) contains 22 as substring.

Together with 45118250729, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45118220731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22559125365 + 22559125366.

It is an arithmetic number, because the mean of its divisors is an integer number (22559125366).

Almost surely, 2^45118250731 is an apocalyptic number.

45118250731 is a deficient number, since it is larger than the sum of its proper divisors (1).

45118250731 is an equidigital number, since it uses as much as digits as its factorization.

45118250731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 45118250731 in words is "forty-five billion, one hundred eighteen million, two hundred fifty thousand, seven hundred thirty-one".