149111979931 has 8 divisors (see below), whose sum is σ = 149366196720. Its totient is φ = 148857843552.

The previous prime is 149111979881. The next prime is 149111979953. The reversal of 149111979931 is 139979111941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 149111979931 - 2¹⁵ = 149111947163 is a prime.

It is a super-2 number, since 2×149111979931² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149111979971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4567141 + ... + 4599673.

It is an arithmetic number, because the mean of its divisors is an integer number (18670774590).

Almost surely, 2^149111979931 is an apocalyptic number.

149111979931 is a deficient number, since it is larger than the sum of its proper divisors (254216789).

149111979931 is an equidigital number, since it uses as much as digits as its factorization.

149111979931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40205.

The product of its digits is 551124, while the sum is 55.

The spelling of 149111979931 in words is "one hundred forty-nine billion, one hundred eleven million, nine hundred seventy-nine thousand, nine hundred thirty-one".