112872101 has 4 divisors (see below), whose sum is σ = 112944204. Its totient is φ = 112800000.

The previous prime is 112872083. The next prime is 112872157. The reversal of 112872101 is 101278211.

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 102535876 + 10336225 = 10126^2 + 3215^2 .

It is a cyclic number.

It is not a de Polignac number, because 112872101 - 2¹⁸ = 112609957 is a prime.

It is a super-2 number, since 2×112872101² = 25480222368308402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112872161) 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, 33650 + ... + 36851.

It is an arithmetic number, because the mean of its divisors is an integer number (28236051).

Almost surely, 2^112872101 is an apocalyptic number.

It is an amenable number.

112872101 is a deficient number, since it is larger than the sum of its proper divisors (72103).

112872101 is an equidigital number, since it uses as much as digits as its factorization.

112872101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72102.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 112872101 is about 10624.1282465904. The cubic root of 112872101 is about 483.2763429700.

The spelling of 112872101 in words is "one hundred twelve million, eight hundred seventy-two thousand, one hundred one".