153912969 has 36 divisors (see below), whose sum is σ = 259542660. Its totient is φ = 87635520.

The previous prime is 153912937. The next prime is 153912989. The reversal of 153912969 is 969219351.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30969225 + 122943744 = 5565^2 + 11088^2 .

It is not a de Polignac number, because 153912969 - 2⁵ = 153912937 is a prime.

It is a super-2 number, since 2×153912969² = 47378404052789922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (153912919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 185247 + ... + 186075.

Almost surely, 2^153912969 is an apocalyptic number.

It is an amenable number.

153912969 is a deficient number, since it is larger than the sum of its proper divisors (105629691).

153912969 is a wasteful number, since it uses less digits than its factorization.

153912969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270 (or 1260 counting only the distinct ones).

The product of its digits is 131220, while the sum is 45.

The square root of 153912969 is about 12406.1665715079. The cubic root of 153912969 is about 535.9098489968.

The spelling of 153912969 in words is "one hundred fifty-three million, nine hundred twelve thousand, nine hundred sixty-nine".