154979 has 8 divisors (see below), whose sum is σ = 172272. Its totient is φ = 138240.

The previous prime is 154943. The next prime is 154981. The reversal of 154979 is 979451.

154979 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

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 154979 - 2⁸ = 154723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154079) 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, 707 + ... + 899.

It is an arithmetic number, because the mean of its divisors is an integer number (21534).

2¹⁵⁴⁹⁷⁹ is an apocalyptic number.

154979 is a deficient number, since it is larger than the sum of its proper divisors (17293).

154979 is a wasteful number, since it uses less digits than its factorization.

154979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277.

The product of its digits is 11340, while the sum is 35.

The square root of 154979 is about 393.6737227705. The cubic root of 154979 is about 53.7144275175.

It can be divided in two parts, 15 and 4979, that added together give a palindrome (4994).

The spelling of 154979 in words is "one hundred fifty-four thousand, nine hundred seventy-nine".