115149331 has 4 divisors (see below), whose sum is σ = 125617464. Its totient is φ = 104681200.

The previous prime is 115149323. The next prime is 115149341. The reversal of 115149331 is 133941511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115149331 - 2³ = 115149323 is a prime.

It is a super-2 number, since 2×115149331² = 26518736859495122, which contains 22 as substring.

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 115149331.

It is not an unprimeable number, because it can be changed into a prime (115149301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5234050 + ... + 5234071.

It is an arithmetic number, because the mean of its divisors is an integer number (31404366).

Almost surely, 2^115149331 is an apocalyptic number.

115149331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115149331 is a deficient number, since it is larger than the sum of its proper divisors (10468133).

115149331 is a wasteful number, since it uses less digits than its factorization.

115149331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10468132.

The product of its digits is 1620, while the sum is 28.

The square root of 115149331 is about 10730.7656297209. The cubic root of 115149331 is about 486.5048114314.

The spelling of 115149331 in words is "one hundred fifteen million, one hundred forty-nine thousand, three hundred thirty-one".