45129756 has 48 divisors (see below), whose sum is σ = 121814784. Its totient is φ = 12736896.

The previous prime is 45129737. The next prime is 45129761. The reversal of 45129756 is 65792154.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3736 + ... + 10208.

It is an arithmetic number, because the mean of its divisors is an integer number (2537808).

Almost surely, 2^45129756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45129756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60907392).

45129756 is an abundant number, since it is smaller than the sum of its proper divisors (76685028).

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

45129756 is a wasteful number, since it uses less digits than its factorization.

45129756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6570 (or 6568 counting only the distinct ones).

The product of its digits is 75600, while the sum is 39.

The square root of 45129756 is about 6717.8684119295. The cubic root of 45129756 is about 356.0308751575.

The spelling of 45129756 in words is "forty-five million, one hundred twenty-nine thousand, seven hundred fifty-six".