11111497 has 2 divisors, whose sum is σ = 11111498. Its totient is φ = 11111496.

The previous prime is 11111491. The next prime is 11111509. The reversal of 11111497 is 79411111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6739216 + 4372281 = 2596^2 + 2091^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11111497 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555748 + 5555749.

It is an arithmetic number, because the mean of its divisors is an integer number (5555749).

Almost surely, 2^11111497 is an apocalyptic number.

It is an amenable number.

11111497 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111497 is an equidigital number, since it uses as much as digits as its factorization.

11111497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 252, while the sum is 25.

The square root of 11111497 is about 3333.3912161641. The cubic root of 11111497 is about 223.1468999315.

The spelling of 11111497 in words is "eleven million, one hundred eleven thousand, four hundred ninety-seven".