115512454 has 4 divisors (see below), whose sum is σ = 173268684. Its totient is φ = 57756226.

The previous prime is 115512451. The next prime is 115512497. The reversal of 115512454 is 454215511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 454215511 = 19991 ⋅22721.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115512451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28878112 + ... + 28878115.

It is an arithmetic number, because the mean of its divisors is an integer number (43317171).

Almost surely, 2^115512454 is an apocalyptic number.

115512454 is a deficient number, since it is larger than the sum of its proper divisors (57756230).

115512454 is an equidigital number, since it uses as much as digits as its factorization.

115512454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57756229.

The product of its digits is 4000, while the sum is 28.

The square root of 115512454 is about 10747.6720270019. The cubic root of 115512454 is about 487.0156718643.

Adding to 115512454 its reverse (454215511), we get a palindrome (569727965).

The spelling of 115512454 in words is "one hundred fifteen million, five hundred twelve thousand, four hundred fifty-four".