112970521 has 4 divisors (see below), whose sum is σ = 112994100. Its totient is φ = 112946944.

The previous prime is 112970519. The next prime is 112970531. The reversal of 112970521 is 125079211.

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 43414921 + 69555600 = 6589^2 + 8340^2 .

It is a cyclic number.

It is not a de Polignac number, because 112970521 - 2¹ = 112970519 is a prime.

It is a super-2 number, since 2×112970521² = 25524677230022882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112970521.

It is not an unprimeable number, because it can be changed into a prime (112970531) 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, 1756 + ... + 15133.

It is an arithmetic number, because the mean of its divisors is an integer number (28248525).

Almost surely, 2^112970521 is an apocalyptic number.

It is an amenable number.

112970521 is a deficient number, since it is larger than the sum of its proper divisors (23579).

112970521 is an equidigital number, since it uses as much as digits as its factorization.

112970521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23578.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 112970521 is about 10628.7591467678. The cubic root of 112970521 is about 483.4167681040.

The spelling of 112970521 in words is "one hundred twelve million, nine hundred seventy thousand, five hundred twenty-one".