115331155 has 8 divisors (see below), whose sum is σ = 141773184. Its totient is φ = 90014400.

The previous prime is 115331143. The next prime is 115331171. The reversal of 115331155 is 551133511.

It is a happy number.

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

It is not a de Polignac number, because 115331155 - 2²¹ = 113234003 is a prime.

It is a Duffinian 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, 281091 + ... + 281500.

It is an arithmetic number, because the mean of its divisors is an integer number (17721648).

Almost surely, 2^115331155 is an apocalyptic number.

115331155 is a deficient number, since it is larger than the sum of its proper divisors (26442029).

115331155 is an equidigital number, since it uses as much as digits as its factorization.

115331155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562637.

The product of its digits is 1125, while the sum is 25.

The square root of 115331155 is about 10739.2343768073. The cubic root of 115331155 is about 486.7607449846.

Adding to 115331155 its reverse (551133511), we get a palindrome (666464666).

The spelling of 115331155 in words is "one hundred fifteen million, three hundred thirty-one thousand, one hundred fifty-five".