111042497 has 2 divisors, whose sum is σ = 111042498. Its totient is φ = 111042496.

The previous prime is 111042493. The next prime is 111042557. The reversal of 111042497 is 794240111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95863681 + 15178816 = 9791^2 + 3896^2 .

It is a cyclic number.

It is not a de Polignac number, because 111042497 - 2² = 111042493 is a prime.

It is a super-2 number, since 2×111042497² = 24660872279990018, which contains 22 as substring.

It is a Chen prime.

It is equal to p_6359510 and since 111042497 and 6359510 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (111042493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55521248 + 55521249.

It is an arithmetic number, because the mean of its divisors is an integer number (55521249).

Almost surely, 2^111042497 is an apocalyptic number.

It is an amenable number.

111042497 is a deficient number, since it is larger than the sum of its proper divisors (1).

111042497 is an equidigital number, since it uses as much as digits as its factorization.

111042497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 111042497 is about 10537.6703782193. The cubic root of 111042497 is about 480.6508777200.

The spelling of 111042497 in words is "one hundred eleven million, forty-two thousand, four hundred ninety-seven".