123959481 has 8 divisors (see below), whose sum is σ = 165367680. Its totient is φ = 82595472.

The previous prime is 123959449. The next prime is 123959513. The reversal of 123959481 is 184959321.

It is an interprime number because it is at equal distance from previous prime (123959449) and next prime (123959513).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123959481 - 2⁵ = 123959449 is a prime.

It is a super-2 number, since 2×123959481² = 30731905859578722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123959431) 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, 3826 + ... + 16203.

It is an arithmetic number, because the mean of its divisors is an integer number (20670960).

Almost surely, 2^123959481 is an apocalyptic number.

It is an amenable number.

123959481 is a deficient number, since it is larger than the sum of its proper divisors (41408199).

123959481 is a wasteful number, since it uses less digits than its factorization.

123959481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22095.

The product of its digits is 77760, while the sum is 42.

The square root of 123959481 is about 11133.7092202015. The cubic root of 123959481 is about 498.6087739035.

The spelling of 123959481 in words is "one hundred twenty-three million, nine hundred fifty-nine thousand, four hundred eighty-one".