113019997 has 2 divisors, whose sum is σ = 113019998. Its totient is φ = 113019996.

The previous prime is 113019983. The next prime is 113020013. The reversal of 113019997 is 799910311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99580441 + 13439556 = 9979^2 + 3666^2 .

It is an emirp because it is prime and its reverse (799910311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113019997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113019917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56509998 + 56509999.

It is an arithmetic number, because the mean of its divisors is an integer number (56509999).

Almost surely, 2^113019997 is an apocalyptic number.

It is an amenable number.

113019997 is a deficient number, since it is larger than the sum of its proper divisors (1).

113019997 is an equidigital number, since it uses as much as digits as its factorization.

113019997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15309, while the sum is 40.

The square root of 113019997 is about 10631.0863508863. The cubic root of 113019997 is about 483.4873293945.

The spelling of 113019997 in words is "one hundred thirteen million, nineteen thousand, nine hundred ninety-seven".