68572152 has 144 divisors (see below), whose sum is σ = 216609120. Its totient is φ = 19514880.

The previous prime is 68572151. The next prime is 68572157. The reversal of 68572152 is 25127586.

It is a happy number.

It is a super-2 number, since 2×68572152² = 9404280059822208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68572151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 147873 + ... + 148335.

It is an arithmetic number, because the mean of its divisors is an integer number (1504230).

Almost surely, 2^68572152 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 68572152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108304560).

68572152 is an abundant number, since it is smaller than the sum of its proper divisors (148036968).

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

68572152 is a wasteful number, since it uses less digits than its factorization.

68572152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 496 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 68572152 is about 8280.8303931429. The cubic root of 68572152 is about 409.3070826240.

It can be divided in two parts, 6857 and 2152, that added together give a palindrome (9009).

The spelling of 68572152 in words is "sixty-eight million, five hundred seventy-two thousand, one hundred fifty-two".