45121860 has 240 divisors, whose sum is σ = 169779456. Its totient is φ = 9808128.

The previous prime is 45121847. The next prime is 45121873. The reversal of 45121860 is 6812154.

It is an interprime number because it is at equal distance from previous prime (45121847) and next prime (45121873).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 260734 + ... + 260906.

Almost surely, 2^45121860 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 45121860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84889728).

45121860 is an abundant number, since it is smaller than the sum of its proper divisors (124657596).

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

45121860 is a wasteful number, since it uses less digits than its factorization.

45121860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 213 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 45121860 is about 6717.2806998070. The cubic root of 45121860 is about 356.0101099683.

The spelling of 45121860 in words is "forty-five million, one hundred twenty-one thousand, eight hundred sixty".