113206155 has 8 divisors (see below), whose sum is σ = 181129872. Its totient is φ = 60376608.

The previous prime is 113206151. The next prime is 113206157. The reversal of 113206155 is 551602311.

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

It is not a de Polignac number, because 113206155 - 2² = 113206151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113206151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3773524 + ... + 3773553.

It is an arithmetic number, because the mean of its divisors is an integer number (22641234).

Almost surely, 2^113206155 is an apocalyptic number.

113206155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

113206155 is a deficient number, since it is larger than the sum of its proper divisors (67923717).

113206155 is an equidigital number, since it uses as much as digits as its factorization.

113206155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7547085.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 113206155 is about 10639.8381096707. The cubic root of 113206155 is about 483.7526383821.

Adding to 113206155 its reverse (551602311), we get a palindrome (664808466).

The spelling of 113206155 in words is "one hundred thirteen million, two hundred six thousand, one hundred fifty-five".