112129517 has 2 divisors, whose sum is σ = 112129518. Its totient is φ = 112129516.

The previous prime is 112129513. The next prime is 112129543. The reversal of 112129517 is 715921211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72829156 + 39300361 = 8534^2 + 6269^2 .

It is a cyclic number.

It is not a de Polignac number, because 112129517 - 2² = 112129513 is a prime.

It is equal to p_6418118 and since 112129517 and 6418118 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112129517.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112129513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56064758 + 56064759.

It is an arithmetic number, because the mean of its divisors is an integer number (56064759).

Almost surely, 2^112129517 is an apocalyptic number.

It is an amenable number.

112129517 is a deficient number, since it is larger than the sum of its proper divisors (1).

112129517 is an equidigital number, since it uses as much as digits as its factorization.

112129517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 29.

The square root of 112129517 is about 10589.1225793264. The cubic root of 112129517 is about 482.2141874467.

The spelling of 112129517 in words is "one hundred twelve million, one hundred twenty-nine thousand, five hundred seventeen".