152970189 has 4 divisors (see below), whose sum is σ = 203960256. Its totient is φ = 101980124.

The previous prime is 152970161. The next prime is 152970211. The reversal of 152970189 is 981079251.

152970189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 152970189 - 2⁸ = 152969933 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 152970189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152970589) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25495029 + ... + 25495034.

It is an arithmetic number, because the mean of its divisors is an integer number (50990064).

Almost surely, 2^152970189 is an apocalyptic number.

It is an amenable number.

152970189 is a deficient number, since it is larger than the sum of its proper divisors (50990067).

152970189 is an equidigital number, since it uses as much as digits as its factorization.

152970189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50990066.

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 152970189 is about 12368.1117798959. Note that the first 3 decimals coincide. The cubic root of 152970189 is about 534.8133847054.

The spelling of 152970189 in words is "one hundred fifty-two million, nine hundred seventy thousand, one hundred eighty-nine".