115541472381 has 16 divisors (see below), whose sum is σ = 154494744768. Its totient is φ = 76808201600.

The previous prime is 115541472379. The next prime is 115541472437. The reversal of 115541472381 is 183274145511.

It is a cyclic number.

It is not a de Polignac number, because 115541472381 - 2¹ = 115541472379 is a prime.

It is a super-2 number, since 2×115541472381² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115541472311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1671355 + ... + 1739111.

It is an arithmetic number, because the mean of its divisors is an integer number (9655921548).

Almost surely, 2^115541472381 is an apocalyptic number.

It is an amenable number.

115541472381 is a deficient number, since it is larger than the sum of its proper divisors (38953272387).

115541472381 is a wasteful number, since it uses less digits than its factorization.

115541472381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69372.

The product of its digits is 134400, while the sum is 42.

The spelling of 115541472381 in words is "one hundred fifteen billion, five hundred forty-one million, four hundred seventy-two thousand, three hundred eighty-one".