113521097 has 2 divisors, whose sum is σ = 113521098. Its totient is φ = 113521096.

The previous prime is 113521091. The next prime is 113521117. The reversal of 113521097 is 790125311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59660176 + 53860921 = 7724^2 + 7339^2 .

It is an emirp because it is prime and its reverse (790125311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113521097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (113521091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56760548 + 56760549.

It is an arithmetic number, because the mean of its divisors is an integer number (56760549).

Almost surely, 2^113521097 is an apocalyptic number.

It is an amenable number.

113521097 is a deficient number, since it is larger than the sum of its proper divisors (1).

113521097 is an equidigital number, since it uses as much as digits as its factorization.

113521097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 113521097 is about 10654.6279615949. The cubic root of 113521097 is about 484.2008264902.

The spelling of 113521097 in words is "one hundred thirteen million, five hundred twenty-one thousand, ninety-seven".