152520989 has 2 divisors, whose sum is σ = 152520990. Its totient is φ = 152520988.

The previous prime is 152520983. The next prime is 152521001. The reversal of 152520989 is 989025251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149572900 + 2948089 = 12230^2 + 1717^2 .

It is a cyclic number.

It is not a de Polignac number, because 152520989 - 2¹² = 152516893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (152520983) 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, 76260494 + 76260495.

It is an arithmetic number, because the mean of its divisors is an integer number (76260495).

Almost surely, 2^152520989 is an apocalyptic number.

It is an amenable number.

152520989 is a deficient number, since it is larger than the sum of its proper divisors (1).

152520989 is an equidigital number, since it uses as much as digits as its factorization.

152520989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 41.

The square root of 152520989 is about 12349.9388257594. The cubic root of 152520989 is about 534.2893747375.

The spelling of 152520989 in words is "one hundred fifty-two million, five hundred twenty thousand, nine hundred eighty-nine".