113890913 has 2 divisors, whose sum is σ = 113890914. Its totient is φ = 113890912.

The previous prime is 113890853. The next prime is 113890919. The reversal of 113890913 is 319098311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93161104 + 20729809 = 9652^2 + 4553^2 .

It is a cyclic number.

It is not a de Polignac number, because 113890913 - 2⁶ = 113890849 is a prime.

It is a super-2 number, since 2×113890913² = 25942280127947138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113890919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56945456 + 56945457.

It is an arithmetic number, because the mean of its divisors is an integer number (56945457).

Almost surely, 2^113890913 is an apocalyptic number.

It is an amenable number.

113890913 is a deficient number, since it is larger than the sum of its proper divisors (1).

113890913 is an equidigital number, since it uses as much as digits as its factorization.

113890913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 113890913 is about 10671.9685625474. The cubic root of 113890913 is about 484.7260478593.

The spelling of 113890913 in words is "one hundred thirteen million, eight hundred ninety thousand, nine hundred thirteen".