45178339 has 2 divisors, whose sum is σ = 45178340. Its totient is φ = 45178338.

The previous prime is 45178319. The next prime is 45178349. The reversal of 45178339 is 93387154.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45178339 - 2⁵ = 45178307 is a prime.

It is not a weakly prime, because it can be changed into another prime (45178319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22589169 + 22589170.

It is an arithmetic number, because the mean of its divisors is an integer number (22589170).

Almost surely, 2^45178339 is an apocalyptic number.

45178339 is a deficient number, since it is larger than the sum of its proper divisors (1).

45178339 is an equidigital number, since it uses as much as digits as its factorization.

45178339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 40.

The square root of 45178339 is about 6721.4833928233. The cubic root of 45178339 is about 356.1585872362.

The spelling of 45178339 in words is "forty-five million, one hundred seventy-eight thousand, three hundred thirty-nine".