112661653 has 6 divisors (see below), whose sum is σ = 121994754. Its totient is φ = 103995216.

The previous prime is 112661651. The next prime is 112661683. The reversal of 112661653 is 356166211.

It can be written as a sum of positive squares in 3 ways, for example, as 1633284 + 111028369 = 1278^2 + 10537^2 .

It is not a de Polignac number, because 112661653 - 2¹ = 112661651 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 (112661651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 333150 + ... + 333487.

It is an arithmetic number, because the mean of its divisors is an integer number (20332459).

Almost surely, 2^112661653 is an apocalyptic number.

112661653 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

112661653 is a deficient number, since it is larger than the sum of its proper divisors (9333101).

112661653 is an equidigital number, since it uses as much as digits as its factorization.

112661653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666663 (or 666650 counting only the distinct ones).

The product of its digits is 6480, while the sum is 31.

The square root of 112661653 is about 10614.2193777969. The cubic root of 112661653 is about 482.9758027620.

The spelling of 112661653 in words is "one hundred twelve million, six hundred sixty-one thousand, six hundred fifty-three".