45406139 has 2 divisors, whose sum is σ = 45406140. Its totient is φ = 45406138.

The previous prime is 45406121. The next prime is 45406159. The reversal of 45406139 is 93160454.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45406139 - 2²⁴ = 28628923 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (45406159) 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, 22703069 + 22703070.

It is an arithmetic number, because the mean of its divisors is an integer number (22703070).

Almost surely, 2^45406139 is an apocalyptic number.

45406139 is a deficient number, since it is larger than the sum of its proper divisors (1).

45406139 is an equidigital number, since it uses as much as digits as its factorization.

45406139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 45406139 is about 6738.4077496097. The cubic root of 45406139 is about 356.7561962143.

The spelling of 45406139 in words is "forty-five million, four hundred six thousand, one hundred thirty-nine".