152285557 has 4 divisors (see below), whose sum is σ = 154430496. Its totient is φ = 150140620.

The previous prime is 152285543. The next prime is 152285561. The reversal of 152285557 is 755582251.

152285557 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, and also an emirpimes, since its reverse is a distinct semiprime: 755582251 = 31 ⋅24373621.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152285557 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152285537) 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, 1072363 + ... + 1072504.

It is an arithmetic number, because the mean of its divisors is an integer number (38607624).

Almost surely, 2^152285557 is an apocalyptic number.

It is an amenable number.

152285557 is a deficient number, since it is larger than the sum of its proper divisors (2144939).

152285557 is an equidigital number, since it uses as much as digits as its factorization.

152285557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144938.

The product of its digits is 140000, while the sum is 40.

The square root of 152285557 is about 12340.4034374894. The cubic root of 152285557 is about 534.0143227699.

The spelling of 152285557 in words is "one hundred fifty-two million, two hundred eighty-five thousand, five hundred fifty-seven".