111492497 has 2 divisors, whose sum is σ = 111492498. Its totient is φ = 111492496.

The previous prime is 111492487. The next prime is 111492499. The reversal of 111492497 is 794294111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 111492481 + 16 = 10559^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 111492497 - 2²² = 107298193 is a prime.

Together with 111492499, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111492497.

It is not a weakly prime, because it can be changed into another prime (111492499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55746248 + 55746249.

It is an arithmetic number, because the mean of its divisors is an integer number (55746249).

Almost surely, 2^111492497 is an apocalyptic number.

It is an amenable number.

111492497 is a deficient number, since it is larger than the sum of its proper divisors (1).

111492497 is an equidigital number, since it uses as much as digits as its factorization.

111492497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 111492497 is about 10559.0007576475. Note that the first 3 decimals coincide. The cubic root of 111492497 is about 481.2992822528.

The spelling of 111492497 in words is "one hundred eleven million, four hundred ninety-two thousand, four hundred ninety-seven".