115631144427 has 8 divisors (see below), whose sum is σ = 159148241920. Its totient is φ = 74600738280.

The previous prime is 115631144423. The next prime is 115631144429. The reversal of 115631144427 is 724441136511.

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

It is not a de Polignac number, because 115631144427 - 2² = 115631144423 is a prime.

It is a super-2 number, since 2×115631144427² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115631144423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621672727 + ... + 621672912.

It is an arithmetic number, because the mean of its divisors is an integer number (19893530240).

Almost surely, 2^115631144427 is an apocalyptic number.

115631144427 is a deficient number, since it is larger than the sum of its proper divisors (43517097493).

115631144427 is a wasteful number, since it uses less digits than its factorization.

115631144427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243345673.

The product of its digits is 80640, while the sum is 39.

The spelling of 115631144427 in words is "one hundred fifteen billion, six hundred thirty-one million, one hundred forty-four thousand, four hundred twenty-seven".