154728979 has 8 divisors (see below), whose sum is σ = 156559392. Its totient is φ = 152906880.

The previous prime is 154728961. The next prime is 154728991. The reversal of 154728979 is 979827451.

154728979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 154728979 - 2¹⁷ = 154597907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154758979) 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, 40314 + ... + 43984.

It is an arithmetic number, because the mean of its divisors is an integer number (19569924).

Almost surely, 2^154728979 is an apocalyptic number.

154728979 is a deficient number, since it is larger than the sum of its proper divisors (1830413).

154728979 is a wasteful number, since it uses less digits than its factorization.

154728979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157.

The product of its digits is 1270080, while the sum is 52.

The square root of 154728979 is about 12439.0103706042. The cubic root of 154728979 is about 536.8552690677.

The spelling of 154728979 in words is "one hundred fifty-four million, seven hundred twenty-eight thousand, nine hundred seventy-nine".