115431554 has 12 divisors (see below), whose sum is σ = 201416454. Its totient is φ = 49470624.

The previous prime is 115431541. The next prime is 115431557. The reversal of 115431554 is 455134511.

It can be written as a sum of positive squares in only one way, i.e., 77915929 + 37515625 = 8827^2 + 6125^2 .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115431557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 588839 + ... + 589034.

Almost surely, 2^115431554 is an apocalyptic number.

115431554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

115431554 is a deficient number, since it is larger than the sum of its proper divisors (85984900).

115431554 is a wasteful number, since it uses less digits than its factorization.

115431554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177889 (or 1177882 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 115431554 is about 10743.9077620761. The cubic root of 115431554 is about 486.9019503044.

The spelling of 115431554 in words is "one hundred fifteen million, four hundred thirty-one thousand, five hundred fifty-four".