152489813 has 24 divisors (see below), whose sum is σ = 190963224. Its totient is φ = 120960000.

The previous prime is 152489797. The next prime is 152489819. The reversal of 152489813 is 318984251.

It can be written as a sum of positive squares in 4 ways, for example, as 9878449 + 142611364 = 3143^2 + 11942^2 .

It is not a de Polignac number, because 152489813 - 2⁴ = 152489797 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152489819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 49313 + ... + 52313.

It is an arithmetic number, because the mean of its divisors is an integer number (7956801).

Almost surely, 2^152489813 is an apocalyptic number.

It is an amenable number.

152489813 is a deficient number, since it is larger than the sum of its proper divisors (38473411).

152489813 is a wasteful number, since it uses less digits than its factorization.

152489813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3093 (or 3086 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 152489813 is about 12348.6765687664. The cubic root of 152489813 is about 534.2529685119.

The spelling of 152489813 in words is "one hundred fifty-two million, four hundred eighty-nine thousand, eight hundred thirteen".