153153989 has 4 divisors (see below), whose sum is σ = 157293324. Its totient is φ = 149014656.

The previous prime is 153153977. The next prime is 153153997. The reversal of 153153989 is 989351351.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 89680900 + 63473089 = 9470^2 + 7967^2 .

It is a cyclic number.

It is not a de Polignac number, because 153153989 - 2²⁰ = 152105413 is a prime.

It is a super-2 number, since 2×153153989² = 46912288693224242, which contains 22 as substring.

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 (153753989) 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, 2069612 + ... + 2069685.

It is an arithmetic number, because the mean of its divisors is an integer number (39323331).

Almost surely, 2^153153989 is an apocalyptic number.

It is an amenable number.

153153989 is a deficient number, since it is larger than the sum of its proper divisors (4139335).

153153989 is an equidigital number, since it uses as much as digits as its factorization.

153153989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4139334.

The product of its digits is 145800, while the sum is 44.

The square root of 153153989 is about 12375.5399478164. The cubic root of 153153989 is about 535.0274990960.

The spelling of 153153989 in words is "one hundred fifty-three million, one hundred fifty-three thousand, nine hundred eighty-nine".