113820955 has 4 divisors (see below), whose sum is σ = 136585152. Its totient is φ = 91056760.

The previous prime is 113820953. The next prime is 113820979. The reversal of 113820955 is 559028311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 559028311 = 521 ⋅1072991.

It is not a de Polignac number, because 113820955 - 2¹ = 113820953 is a prime.

It is a super-2 number, since 2×113820955² = 25910419594224050, 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 113820955.

It is not an unprimeable number, because it can be changed into a prime (113820953) 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, 11382091 + ... + 11382100.

It is an arithmetic number, because the mean of its divisors is an integer number (34146288).

Almost surely, 2^113820955 is an apocalyptic number.

113820955 is a deficient number, since it is larger than the sum of its proper divisors (22764197).

113820955 is an equidigital number, since it uses as much as digits as its factorization.

113820955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22764196.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 113820955 is about 10668.6904069806. The cubic root of 113820955 is about 484.6267791540.

The spelling of 113820955 in words is "one hundred thirteen million, eight hundred twenty thousand, nine hundred fifty-five".