154879951 has 4 divisors (see below), whose sum is σ = 155021472. Its totient is φ = 154738432.

The previous prime is 154879931. The next prime is 154879969. The reversal of 154879951 is 159978451.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 154879951 - 2²³ = 146491343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 154879895 and 154879904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154879931) 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, 69106 + ... + 71311.

It is an arithmetic number, because the mean of its divisors is an integer number (38755368).

Almost surely, 2^154879951 is an apocalyptic number.

154879951 is a deficient number, since it is larger than the sum of its proper divisors (141521).

154879951 is a wasteful number, since it uses less digits than its factorization.

154879951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141520.

The product of its digits is 453600, while the sum is 49.

The square root of 154879951 is about 12445.0773802335. The cubic root of 154879951 is about 537.0298189328.

Adding to 154879951 its product of digits (453600), we get a palindrome (155333551).

The spelling of 154879951 in words is "one hundred fifty-four million, eight hundred seventy-nine thousand, nine hundred fifty-one".