45215405237 has 2 divisors, whose sum is σ = 45215405238. Its totient is φ = 45215405236.

The previous prime is 45215405233. The next prime is 45215405239. The reversal of 45215405237 is 73250451254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25595520196 + 19619885041 = 159986^2 + 140071^2 .

It is a cyclic number.

It is not a de Polignac number, because 45215405237 - 2² = 45215405233 is a prime.

It is a super-2 number, since 2×45215405237² (a number of 22 digits) contains 22 as substring.

Together with 45215405239, it forms a pair of twin primes.

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 45215405237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45215405233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22607702618 + 22607702619.

It is an arithmetic number, because the mean of its divisors is an integer number (22607702619).

Almost surely, 2^45215405237 is an apocalyptic number.

It is an amenable number.

45215405237 is a deficient number, since it is larger than the sum of its proper divisors (1).

45215405237 is an equidigital number, since it uses as much as digits as its factorization.

45215405237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168000, while the sum is 38.

The spelling of 45215405237 in words is "forty-five billion, two hundred fifteen million, four hundred five thousand, two hundred thirty-seven".