45729139 has 2 divisors, whose sum is σ = 45729140. Its totient is φ = 45729138.

The previous prime is 45729137. The next prime is 45729149. The reversal of 45729139 is 93192754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45729139 - 2¹ = 45729137 is a prime.

Together with 45729137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45729137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22864569 + 22864570.

It is an arithmetic number, because the mean of its divisors is an integer number (22864570).

Almost surely, 2^45729139 is an apocalyptic number.

45729139 is a deficient number, since it is larger than the sum of its proper divisors (1).

45729139 is an equidigital number, since it uses as much as digits as its factorization.

45729139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 45729139 is about 6762.3323639111. The cubic root of 45729139 is about 357.6001356086.

The spelling of 45729139 in words is "forty-five million, seven hundred twenty-nine thousand, one hundred thirty-nine".