45107172 has 96 divisors (see below), whose sum is σ = 130690560. Its totient is φ = 13335840.

The previous prime is 45107141. The next prime is 45107177. The reversal of 45107172 is 27170154.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45107177) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50643 + ... + 51525.

It is an arithmetic number, because the mean of its divisors is an integer number (1361360).

Almost surely, 2^45107172 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 45107172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65345280).

45107172 is an abundant number, since it is smaller than the sum of its proper divisors (85583388).

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

45107172 is a wasteful number, since it uses less digits than its factorization.

45107172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950 (or 942 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 27.

The square root of 45107172 is about 6716.1873112652. The cubic root of 45107172 is about 355.9714764842.

The spelling of 45107172 in words is "forty-five million, one hundred seven thousand, one hundred seventy-two".