148979 has 4 divisors (see below), whose sum is σ = 156840. Its totient is φ = 141120.

The previous prime is 148961. The next prime is 148991. The reversal of 148979 is 979841.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 979841 = 43 ⋅22787.

It is a cyclic number.

It is not a de Polignac number, because 148979 - 2⁸ = 148723 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 148979.

It is not an unprimeable number, because it can be changed into a prime (148949) 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, 3902 + ... + 3939.

It is an arithmetic number, because the mean of its divisors is an integer number (39210).

2¹⁴⁸⁹⁷⁹ is an apocalyptic number.

148979 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

148979 is a deficient number, since it is larger than the sum of its proper divisors (7861).

148979 is an equidigital number, since it uses as much as digits as its factorization.

148979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7860.

The product of its digits is 18144, while the sum is 38.

The square root of 148979 is about 385.9779786465. The cubic root of 148979 is about 53.0121011884.

The spelling of 148979 in words is "one hundred forty-eight thousand, nine hundred seventy-nine".