153125989 has 2 divisors, whose sum is σ = 153125990. Its totient is φ = 153125988.

The previous prime is 153125981. The next prime is 153125993. The reversal of 153125989 is 989521351.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152324964 + 801025 = 12342^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 153125989 - 2³ = 153125981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153125981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76562994 + 76562995.

It is an arithmetic number, because the mean of its divisors is an integer number (76562995).

Almost surely, 2^153125989 is an apocalyptic number.

It is an amenable number.

153125989 is a deficient number, since it is larger than the sum of its proper divisors (1).

153125989 is an equidigital number, since it uses as much as digits as its factorization.

153125989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 43.

The square root of 153125989 is about 12374.4086323347. The cubic root of 153125989 is about 534.9948920815.

The spelling of 153125989 in words is "one hundred fifty-three million, one hundred twenty-five thousand, nine hundred eighty-nine".