115533155 has 8 divisors (see below), whose sum is σ = 140395200. Its totient is φ = 91256256.

The previous prime is 115533137. The next prime is 115533161. The reversal of 115533155 is 551335511.

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 115533155 - 2⁸ = 115532899 is a prime.

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, 145850 + ... + 146639.

It is an arithmetic number, because the mean of its divisors is an integer number (17549400).

Almost surely, 2^115533155 is an apocalyptic number.

115533155 is a deficient number, since it is larger than the sum of its proper divisors (24862045).

115533155 is an equidigital number, since it uses as much as digits as its factorization.

115533155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292573.

The product of its digits is 5625, while the sum is 29.

The square root of 115533155 is about 10748.6350296212. The cubic root of 115533155 is about 487.0447628379.

Adding to 115533155 its reverse (551335511), we get a palindrome (666868666).

The spelling of 115533155 in words is "one hundred fifteen million, five hundred thirty-three thousand, one hundred fifty-five".