113221519 has 2 divisors, whose sum is σ = 113221520. Its totient is φ = 113221518.

The previous prime is 113221487. The next prime is 113221561. The reversal of 113221519 is 915122311.

It is a weak prime.

It is an emirp because it is prime and its reverse (915122311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113221519 - 2⁵ = 113221487 is a prime.

It is a super-2 number, since 2×113221519² = 25638224729334722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113221493 and 113221502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113221319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56610759 + 56610760.

It is an arithmetic number, because the mean of its divisors is an integer number (56610760).

Almost surely, 2^113221519 is an apocalyptic number.

113221519 is a deficient number, since it is larger than the sum of its proper divisors (1).

113221519 is an equidigital number, since it uses as much as digits as its factorization.

113221519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 540, while the sum is 25.

The square root of 113221519 is about 10640.5600886420. The cubic root of 113221519 is about 483.7745218781.

The spelling of 113221519 in words is "one hundred thirteen million, two hundred twenty-one thousand, five hundred nineteen".