154479881 has 8 divisors (see below), whose sum is σ = 156543840. Its totient is φ = 152423392.

The previous prime is 154479869. The next prime is 154479887. The reversal of 154479881 is 188974451.

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 154479881 - 2⁶ = 154479817 is a prime.

It is a super-2 number, since 2×154479881² = 47728067267548322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154479887) 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, 48566 + ... + 51648.

It is an arithmetic number, because the mean of its divisors is an integer number (19567980).

Almost surely, 2^154479881 is an apocalyptic number.

It is an amenable number.

154479881 is a deficient number, since it is larger than the sum of its proper divisors (2063959).

154479881 is an equidigital number, since it uses as much as digits as its factorization.

154479881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3735.

The product of its digits is 322560, while the sum is 47.

The square root of 154479881 is about 12428.9935634387. The cubic root of 154479881 is about 536.5670201079.

The spelling of 154479881 in words is "one hundred fifty-four million, four hundred seventy-nine thousand, eight hundred eighty-one".