45513720 has 96 divisors (see below), whose sum is σ = 169060320. Its totient is φ = 10402560.

The previous prime is 45513707. The next prime is 45513733. The reversal of 45513720 is 2731554.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (45513707) and next prime (45513733).

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 6511 + ... + 11550.

It is an arithmetic number, because the mean of its divisors is an integer number (1761045).

Almost surely, 2^45513720 is an apocalyptic number.

45513720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45513720 is an abundant number, since it is smaller than the sum of its proper divisors (123546600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45513720 is a wasteful number, since it uses less digits than its factorization.

45513720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18085 (or 18078 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 45513720 is about 6746.3856990243. The cubic root of 45513720 is about 357.0377287527.

The spelling of 45513720 in words is "forty-five million, five hundred thirteen thousand, seven hundred twenty".