113542587 has 8 divisors (see below), whose sum is σ = 168211280. Its totient is φ = 75695040.

The previous prime is 113542579. The next prime is 113542601. The reversal of 113542587 is 785245311.

113542587 is a `hidden beast` number, since 1 + 1 + 35 + 42 + 587 = 666.

It is not a de Polignac number, because 113542587 - 2³ = 113542579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113542787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2102614 + ... + 2102667.

It is an arithmetic number, because the mean of its divisors is an integer number (21026410).

Almost surely, 2^113542587 is an apocalyptic number.

113542587 is a deficient number, since it is larger than the sum of its proper divisors (54668693).

113542587 is an equidigital number, since it uses as much as digits as its factorization.

113542587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4205290 (or 4205284 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 113542587 is about 10655.6363958236. The cubic root of 113542587 is about 484.2313782834.

Adding to 113542587 its reverse (785245311), we get a palindrome (898787898).

The spelling of 113542587 in words is "one hundred thirteen million, five hundred forty-two thousand, five hundred eighty-seven".