113921797 has 4 divisors (see below), whose sum is σ = 124278336. Its totient is φ = 103565260.

The previous prime is 113921791. The next prime is 113921813. The reversal of 113921797 is 797129311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 797129311 = 11 ⋅72466301.

It is a cyclic number.

It is not a de Polignac number, because 113921797 - 2³ = 113921789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113921791) 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, 5178253 + ... + 5178274.

It is an arithmetic number, because the mean of its divisors is an integer number (31069584).

Almost surely, 2^113921797 is an apocalyptic number.

It is an amenable number.

113921797 is a deficient number, since it is larger than the sum of its proper divisors (10356539).

113921797 is a wasteful number, since it uses less digits than its factorization.

113921797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10356538.

The product of its digits is 23814, while the sum is 40.

The square root of 113921797 is about 10673.4154327469. The cubic root of 113921797 is about 484.7698585723.

The spelling of 113921797 in words is "one hundred thirteen million, nine hundred twenty-one thousand, seven hundred ninety-seven".