152331989 has 2 divisors, whose sum is σ = 152331990. Its totient is φ = 152331988.

The previous prime is 152331973. The next prime is 152332007. The reversal of 152331989 is 989133251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122988100 + 29343889 = 11090^2 + 5417^2 .

It is a cyclic number.

It is not a de Polignac number, because 152331989 - 2⁴ = 152331973 is a prime.

It is a super-2 number, since 2×152331989² = 46410069745392242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152330989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76165994 + 76165995.

It is an arithmetic number, because the mean of its divisors is an integer number (76165995).

Almost surely, 2^152331989 is an apocalyptic number.

It is an amenable number.

152331989 is a deficient number, since it is larger than the sum of its proper divisors (1).

152331989 is an equidigital number, since it uses as much as digits as its factorization.

152331989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 41.

The square root of 152331989 is about 12342.2845940288. The cubic root of 152331989 is about 534.0685910668.

The spelling of 152331989 in words is "one hundred fifty-two million, three hundred thirty-one thousand, nine hundred eighty-nine".