153349979 has 4 divisors (see below), whose sum is σ = 162370584. Its totient is φ = 144329376.

The previous prime is 153349961. The next prime is 153350003. The reversal of 153349979 is 979943351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979943351 = 14011 ⋅69941.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-153349979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153349379) 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 3 ways as a sum of consecutive naturals, for example, 4510277 + ... + 4510310.

It is an arithmetic number, because the mean of its divisors is an integer number (40592646).

Almost surely, 2^153349979 is an apocalyptic number.

153349979 is a deficient number, since it is larger than the sum of its proper divisors (9020605).

153349979 is an equidigital number, since it uses as much as digits as its factorization.

153349979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9020604.

The product of its digits is 918540, while the sum is 50.

The square root of 153349979 is about 12383.4558585235. The cubic root of 153349979 is about 535.2556253596.

The spelling of 153349979 in words is "one hundred fifty-three million, three hundred forty-nine thousand, nine hundred seventy-nine".