45537139 has 2 divisors, whose sum is σ = 45537140. Its totient is φ = 45537138.

The previous prime is 45537137. The next prime is 45537161. The reversal of 45537139 is 93173554.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45537139 - 2¹ = 45537137 is a prime.

Together with 45537137, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 45537098 and 45537107.

It is not a weakly prime, because it can be changed into another prime (45537133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22768569 + 22768570.

It is an arithmetic number, because the mean of its divisors is an integer number (22768570).

Almost surely, 2^45537139 is an apocalyptic number.

45537139 is a deficient number, since it is larger than the sum of its proper divisors (1).

45537139 is an equidigital number, since it uses as much as digits as its factorization.

45537139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 37.

The square root of 45537139 is about 6748.1211459191. The cubic root of 45537139 is about 357.0989559523.

The spelling of 45537139 in words is "forty-five million, five hundred thirty-seven thousand, one hundred thirty-nine".