45138559 has 2 divisors, whose sum is σ = 45138560. Its totient is φ = 45138558.

The previous prime is 45138551. The next prime is 45138571. The reversal of 45138559 is 95583154.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45138559 - 2³ = 45138551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45138551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22569279 + 22569280.

It is an arithmetic number, because the mean of its divisors is an integer number (22569280).

Almost surely, 2^45138559 is an apocalyptic number.

45138559 is a deficient number, since it is larger than the sum of its proper divisors (1).

45138559 is an equidigital number, since it uses as much as digits as its factorization.

45138559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108000, while the sum is 40.

The square root of 45138559 is about 6718.5235729288. The cubic root of 45138559 is about 356.0540227531.

The spelling of 45138559 in words is "forty-five million, one hundred thirty-eight thousand, five hundred fifty-nine".