112643541 has 20 divisors (see below), whose sum is σ = 168722400. Its totient is φ = 74893896.

The previous prime is 112643507. The next prime is 112643579. The reversal of 112643541 is 145346211.

It is a happy number.

112643541 is a `hidden beast` number, since 1 + 12 + 643 + 5 + 4 + 1 = 666.

It is not a de Polignac number, because 112643541 - 2⁶ = 112643477 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112643341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 32280 + ... + 35598.

It is an arithmetic number, because the mean of its divisors is an integer number (8436120).

Almost surely, 2^112643541 is an apocalyptic number.

It is an amenable number.

112643541 is a deficient number, since it is larger than the sum of its proper divisors (56078859).

112643541 is an equidigital number, since it uses as much as digits as its factorization.

112643541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750 (or 3741 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 112643541 is about 10613.3661483999. The cubic root of 112643541 is about 482.9499195790.

Adding to 112643541 its reverse (145346211), we get a palindrome (257989752).

The spelling of 112643541 in words is "one hundred twelve million, six hundred forty-three thousand, five hundred forty-one".