152997188 has 6 divisors (see below), whose sum is σ = 267745086. Its totient is φ = 76498592.

The previous prime is 152997181. The next prime is 152997193. The reversal of 152997188 is 881799251.

152997188 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 119727364 + 33269824 = 10942^2 + 5768^2 .

It is not an unprimeable number, because it can be changed into a prime (152997181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19124645 + ... + 19124652.

It is an arithmetic number, because the mean of its divisors is an integer number (44624181).

Almost surely, 2^152997188 is an apocalyptic number.

It is an amenable number.

152997188 is a deficient number, since it is larger than the sum of its proper divisors (114747898).

152997188 is a wasteful number, since it uses less digits than its factorization.

152997188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38249301 (or 38249299 counting only the distinct ones).

The product of its digits is 362880, while the sum is 50.

The square root of 152997188 is about 12369.2032079678. The cubic root of 152997188 is about 534.8448474308.

The spelling of 152997188 in words is "one hundred fifty-two million, nine hundred ninety-seven thousand, one hundred eighty-eight".