113250721 has 2 divisors, whose sum is σ = 113250722. Its totient is φ = 113250720.

The previous prime is 113250707. The next prime is 113250727. The reversal of 113250721 is 127052311.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68293696 + 44957025 = 8264^2 + 6705^2 .

It is a cyclic number.

It is not a de Polignac number, because 113250721 - 2²³ = 104862113 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 113250692 and 113250701.

It is not a weakly prime, because it can be changed into another prime (113250727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56625360 + 56625361.

It is an arithmetic number, because the mean of its divisors is an integer number (56625361).

Almost surely, 2^113250721 is an apocalyptic number.

It is an amenable number.

113250721 is a deficient number, since it is larger than the sum of its proper divisors (1).

113250721 is an equidigital number, since it uses as much as digits as its factorization.

113250721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 113250721 is about 10641.9322023775. The cubic root of 113250721 is about 483.8161098769.

The spelling of 113250721 in words is "one hundred thirteen million, two hundred fifty thousand, seven hundred twenty-one".