112545531 has 80 divisors (see below), whose sum is σ = 209397760. Its totient is φ = 58786560.

The previous prime is 112545529. The next prime is 112545539. The reversal of 112545531 is 135545211.

112545531 is a `hidden beast` number, since 1 + 125 + 4 + 5 + 531 = 666.

It is not a de Polignac number, because 112545531 - 2¹ = 112545529 is a prime.

It is a super-2 number, since 2×112545531² = 25332993096143922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112545495 and 112545504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112545539) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 333795 + ... + 334131.

It is an arithmetic number, because the mean of its divisors is an integer number (2617472).

Almost surely, 2^112545531 is an apocalyptic number.

112545531 is a deficient number, since it is larger than the sum of its proper divisors (96852229).

112545531 is a wasteful number, since it uses less digits than its factorization.

112545531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406 (or 397 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 112545531 is about 10608.7478525979. The cubic root of 112545531 is about 482.8098089962.

It can be divided in two parts, 1125 and 45531, that added together give a 6-th power (46656 = 6⁶).

The spelling of 112545531 in words is "one hundred twelve million, five hundred forty-five thousand, five hundred thirty-one".