45139736 has 16 divisors (see below), whose sum is σ = 84836400. Its totient is φ = 22516704.

The previous prime is 45139733. The next prime is 45139739. The reversal of 45139736 is 63793154.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45139733) and next prime (45139739).

It is a super-2 number, since 2×45139736² = 4075191532299392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45139736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45139733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2915 + ... + 9938.

It is an arithmetic number, because the mean of its divisors is an integer number (5302275).

Almost surely, 2^45139736 is an apocalyptic number.

It is an amenable number.

45139736 is a deficient number, since it is larger than the sum of its proper divisors (39696664).

45139736 is a wasteful number, since it uses less digits than its factorization.

45139736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13298 (or 13294 counting only the distinct ones).

The product of its digits is 68040, while the sum is 38.

The square root of 45139736 is about 6718.6111660075. The cubic root of 45139736 is about 356.0571174609.

The spelling of 45139736 in words is "forty-five million, one hundred thirty-nine thousand, seven hundred thirty-six".