152721104 has 40 divisors (see below), whose sum is σ = 310313472. Its totient is φ = 72673920.

The previous prime is 152721091. The next prime is 152721119. The reversal of 152721104 is 401127251.

152721104 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a self number, because there is not a number n which added to its sum of digits gives 152721104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81134 + ... + 82994.

Almost surely, 2^152721104 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 152721104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155156736).

152721104 is an abundant number, since it is smaller than the sum of its proper divisors (157592368).

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

152721104 is a wasteful number, since it uses less digits than its factorization.

152721104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115 (or 2109 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 152721104 is about 12358.0380319855. The cubic root of 152721104 is about 534.5229438828.

Adding to 152721104 its reverse (401127251), we get a palindrome (553848355).

The spelling of 152721104 in words is "one hundred fifty-two million, seven hundred twenty-one thousand, one hundred four".