111193157 has 2 divisors, whose sum is σ = 111193158. Its totient is φ = 111193156.

The previous prime is 111193091. The next prime is 111193183. The reversal of 111193157 is 751391111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103347556 + 7845601 = 10166^2 + 2801^2 .

It is a cyclic number.

It is not a de Polignac number, because 111193157 - 2⁸ = 111192901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111193457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55596578 + 55596579.

It is an arithmetic number, because the mean of its divisors is an integer number (55596579).

Almost surely, 2^111193157 is an apocalyptic number.

It is an amenable number.

111193157 is a deficient number, since it is larger than the sum of its proper divisors (1).

111193157 is an equidigital number, since it uses as much as digits as its factorization.

111193157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 945, while the sum is 29.

The square root of 111193157 is about 10544.8165939479. The cubic root of 111193157 is about 480.8681583034.

The spelling of 111193157 in words is "one hundred eleven million, one hundred ninety-three thousand, one hundred fifty-seven".