113023155 has 48 divisors (see below), whose sum is σ = 211438080. Its totient is φ = 51403968.

The previous prime is 113023133. The next prime is 113023159. The reversal of 113023155 is 551320311.

It is not a de Polignac number, because 113023155 - 2⁶ = 113023091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113023159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 269536 + ... + 269954.

It is an arithmetic number, because the mean of its divisors is an integer number (4404960).

Almost surely, 2^113023155 is an apocalyptic number.

113023155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

113023155 is a deficient number, since it is larger than the sum of its proper divisors (98414925).

113023155 is a wasteful number, since it uses less digits than its factorization.

113023155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 801 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 113023155 is about 10631.2348765325. The cubic root of 113023155 is about 483.4918325468.

Adding to 113023155 its reverse (551320311), we get a palindrome (664343466).

The spelling of 113023155 in words is "one hundred thirteen million, twenty-three thousand, one hundred fifty-five".