113672981 has 2 divisors, whose sum is σ = 113672982. Its totient is φ = 113672980.

The previous prime is 113672959. The next prime is 113672989. The reversal of 113672981 is 189276311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95746225 + 17926756 = 9785^2 + 4234^2 .

It is a cyclic number.

It is not a de Polignac number, because 113672981 - 2¹⁸ = 113410837 is a prime.

It is a super-2 number, since 2×113672981² = 25843093218852722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113672989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56836490 + 56836491.

It is an arithmetic number, because the mean of its divisors is an integer number (56836491).

Almost surely, 2^113672981 is an apocalyptic number.

It is an amenable number.

113672981 is a deficient number, since it is larger than the sum of its proper divisors (1).

113672981 is an equidigital number, since it uses as much as digits as its factorization.

113672981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 113672981 is about 10661.7531860384. The cubic root of 113672981 is about 484.4166735480.

The spelling of 113672981 in words is "one hundred thirteen million, six hundred seventy-two thousand, nine hundred eighty-one".