153983979 has 12 divisors (see below), whose sum is σ = 223210936. Its totient is φ = 102291552.

The previous prime is 153983933. The next prime is 153984029. The reversal of 153983979 is 979389351.

153983979 is a `hidden beast` number, since 1 + 539 + 8 + 39 + 79 = 666.

It is not a de Polignac number, because 153983979 - 2⁸ = 153983723 is a prime.

It is a super-2 number, since 2×153983979² = 47422131577344882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153983279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27682 + ... + 32775.

Almost surely, 2^153983979 is an apocalyptic number.

153983979 is a deficient number, since it is larger than the sum of its proper divisors (69226957).

153983979 is a wasteful number, since it uses less digits than its factorization.

153983979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60746 (or 60743 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 54.

The square root of 153983979 is about 12409.0281247163. The cubic root of 153983979 is about 535.9922529418.

The spelling of 153983979 in words is "one hundred fifty-three million, nine hundred eighty-three thousand, nine hundred seventy-nine".