113135587 has 4 divisors (see below), whose sum is σ = 113285016. Its totient is φ = 112986160.

The previous prime is 113135573. The next prime is 113135591. The reversal of 113135587 is 785531311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 785531311 = 19381 ⋅40531.

It is a cyclic number.

It is not a de Polignac number, because 113135587 - 2¹⁹ = 112611299 is a prime.

It is a super-2 number, since 2×113135587² = 25599322091669138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113135567) 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, 73573 + ... + 75094.

It is an arithmetic number, because the mean of its divisors is an integer number (28321254).

Almost surely, 2^113135587 is an apocalyptic number.

113135587 is a deficient number, since it is larger than the sum of its proper divisors (149429).

113135587 is an equidigital number, since it uses as much as digits as its factorization.

113135587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149428.

The product of its digits is 12600, while the sum is 34.

The square root of 113135587 is about 10636.5213768412. The cubic root of 113135587 is about 483.6521004095.

Adding to 113135587 its reverse (785531311), we get a palindrome (898666898).

It can be divided in two parts, 11313 and 5587, that added together give a square (16900 = 130²).

The spelling of 113135587 in words is "one hundred thirteen million, one hundred thirty-five thousand, five hundred eighty-seven".