112531345 has 4 divisors (see below), whose sum is σ = 135037620. Its totient is φ = 90025072.

The previous prime is 112531343. The next prime is 112531351. The reversal of 112531345 is 543135211.

It is a happy number.

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 40094224 + 72437121 = 6332^2 + 8511^2 .

It is a cyclic number.

It is not a de Polignac number, because 112531345 - 2¹ = 112531343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112531343) 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, 11253130 + ... + 11253139.

It is an arithmetic number, because the mean of its divisors is an integer number (33759405).

Almost surely, 2^112531345 is an apocalyptic number.

It is an amenable number.

112531345 is a deficient number, since it is larger than the sum of its proper divisors (22506275).

112531345 is an equidigital number, since it uses as much as digits as its factorization.

112531345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22506274.

The product of its digits is 1800, while the sum is 25.

The square root of 112531345 is about 10608.0792323587. The cubic root of 112531345 is about 482.7895226058.

Adding to 112531345 its reverse (543135211), we get a palindrome (655666556).

The spelling of 112531345 in words is "one hundred twelve million, five hundred thirty-one thousand, three hundred forty-five".