115431215 has 8 divisors (see below), whose sum is σ = 140788608. Its totient is φ = 90830880.

The previous prime is 115431209. The next prime is 115431271. The reversal of 115431215 is 512134511.

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

It is not a de Polignac number, because 115431215 - 2¹⁰ = 115430191 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188927 + ... + 189536.

It is an arithmetic number, because the mean of its divisors is an integer number (17598576).

Almost surely, 2^115431215 is an apocalyptic number.

115431215 is a deficient number, since it is larger than the sum of its proper divisors (25357393).

115431215 is an equidigital number, since it uses as much as digits as its factorization.

115431215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378529.

The product of its digits is 600, while the sum is 23.

The square root of 115431215 is about 10743.8919856819. The cubic root of 115431215 is about 486.9014736586.

Adding to 115431215 its reverse (512134511), we get a palindrome (627565726).

The spelling of 115431215 in words is "one hundred fifteen million, four hundred thirty-one thousand, two hundred fifteen".