112391761 has 2 divisors, whose sum is σ = 112391762. Its totient is φ = 112391760.

The previous prime is 112391759. The next prime is 112391767. The reversal of 112391761 is 167193211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110649361 + 1742400 = 10519^2 + 1320^2 .

It is a cyclic number.

It is not a de Polignac number, because 112391761 - 2¹ = 112391759 is a prime.

It is a super-2 number, since 2×112391761² = 25263815881362242, which contains 22 as substring.

Together with 112391759, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (112391767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56195880 + 56195881.

It is an arithmetic number, because the mean of its divisors is an integer number (56195881).

Almost surely, 2^112391761 is an apocalyptic number.

It is an amenable number.

112391761 is a deficient number, since it is larger than the sum of its proper divisors (1).

112391761 is an equidigital number, since it uses as much as digits as its factorization.

112391761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 31.

The square root of 112391761 is about 10601.4980545204. The cubic root of 112391761 is about 482.5898224679.

The spelling of 112391761 in words is "one hundred twelve million, three hundred ninety-one thousand, seven hundred sixty-one".