112899517 has 4 divisors (see below), whose sum is σ = 114017436. Its totient is φ = 111781600.

The previous prime is 112899511. The next prime is 112899541. The reversal of 112899517 is 715998211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103002201 + 9897316 = 10149^2 + 3146^2 .

It is a cyclic number.

It is not a de Polignac number, because 112899517 - 2⁷ = 112899389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112899511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 558808 + ... + 559009.

It is an arithmetic number, because the mean of its divisors is an integer number (28504359).

Almost surely, 2^112899517 is an apocalyptic number.

It is an amenable number.

112899517 is a deficient number, since it is larger than the sum of its proper divisors (1117919).

112899517 is a wasteful number, since it uses less digits than its factorization.

112899517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117918.

The product of its digits is 45360, while the sum is 43.

The square root of 112899517 is about 10625.4184388192. The cubic root of 112899517 is about 483.3154681731.

The spelling of 112899517 in words is "one hundred twelve million, eight hundred ninety-nine thousand, five hundred seventeen".