45637901 has 2 divisors, whose sum is σ = 45637902. Its totient is φ = 45637900.

The previous prime is 45637871. The next prime is 45637903. The reversal of 45637901 is 10973654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44689225 + 948676 = 6685^2 + 974^2 .

It is a cyclic number.

It is not a de Polignac number, because 45637901 - 2¹⁴ = 45621517 is a prime.

Together with 45637903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45637903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22818950 + 22818951.

It is an arithmetic number, because the mean of its divisors is an integer number (22818951).

Almost surely, 2^45637901 is an apocalyptic number.

It is an amenable number.

45637901 is a deficient number, since it is larger than the sum of its proper divisors (1).

45637901 is an equidigital number, since it uses as much as digits as its factorization.

45637901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 45637901 is about 6755.5829504196. The cubic root of 45637901 is about 357.3621513625.

The spelling of 45637901 in words is "forty-five million, six hundred thirty-seven thousand, nine hundred one".