45446939 has 2 divisors, whose sum is σ = 45446940. Its totient is φ = 45446938.

The previous prime is 45446903. The next prime is 45446941. The reversal of 45446939 is 93964454.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45446939 is a prime.

It is a Sophie Germain prime.

Together with 45446941, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45446939.

It is not a weakly prime, because it can be changed into another prime (45446969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22723469 + 22723470.

It is an arithmetic number, because the mean of its divisors is an integer number (22723470).

Almost surely, 2^45446939 is an apocalyptic number.

45446939 is a deficient number, since it is larger than the sum of its proper divisors (1).

45446939 is an equidigital number, since it uses as much as digits as its factorization.

45446939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 44.

The square root of 45446939 is about 6741.4344912637. The cubic root of 45446939 is about 356.8630194736.

The spelling of 45446939 in words is "forty-five million, four hundred forty-six thousand, nine hundred thirty-nine".