63158172 has 96 divisors (see below), whose sum is σ = 190149120. Its totient is φ = 15832320.

The previous prime is 63158171. The next prime is 63158239. The reversal of 63158172 is 27185136.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63158171) 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, 25618 + ... + 27974.

It is an arithmetic number, because the mean of its divisors is an integer number (1980720).

Almost surely, 2^63158172 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 63158172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95074560).

63158172 is an abundant number, since it is smaller than the sum of its proper divisors (126990948).

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

63158172 is a wasteful number, since it uses less digits than its factorization.

63158172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2411 (or 2409 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 63158172 is about 7947.2115864623. The cubic root of 63158172 is about 398.2384453679.

The spelling of 63158172 in words is "sixty-three million, one hundred fifty-eight thousand, one hundred seventy-two".