115531451 has 8 divisors (see below), whose sum is σ = 136295424. Its totient is φ = 95832360.

The previous prime is 115531441. The next prime is 115531453. The reversal of 115531451 is 154135511.

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

It is a cyclic number.

It is not a de Polignac number, because 115531451 - 2¹⁴ = 115515067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115531451.

It is not an unprimeable number, because it can be changed into a prime (115531453) 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, 265985 + ... + 266418.

It is an arithmetic number, because the mean of its divisors is an integer number (17036928).

Almost surely, 2^115531451 is an apocalyptic number.

115531451 is a deficient number, since it is larger than the sum of its proper divisors (20763973).

115531451 is an equidigital number, since it uses as much as digits as its factorization.

115531451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532441.

The product of its digits is 1500, while the sum is 26.

The square root of 115531451 is about 10748.5557634503. Note that the first 3 decimals coincide. The cubic root of 115531451 is about 487.0423683496.

Adding to 115531451 its reverse (154135511), we get a palindrome (269666962).

The spelling of 115531451 in words is "one hundred fifteen million, five hundred thirty-one thousand, four hundred fifty-one".