113493 has 4 divisors (see below), whose sum is σ = 151328. Its totient is φ = 75660.

The previous prime is 113489. The next prime is 113497. The reversal of 113493 is 394311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 394311 = 3 ⋅131437.

It is an interprime number because it is at equal distance from previous prime (113489) and next prime (113497).

It is not a de Polignac number, because 113493 - 2² = 113489 is a prime.

It is a super-2 number, since 2×113493² = 25761322098, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

113493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18913 + ... + 18918.

It is an arithmetic number, because the mean of its divisors is an integer number (37832).

2¹¹³⁴⁹³ is an apocalyptic number.

It is an amenable number.

113493 is a deficient number, since it is larger than the sum of its proper divisors (37835).

113493 is an equidigital number, since it uses as much as digits as its factorization.

113493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37834.

The product of its digits is 324, while the sum is 21.

The square root of 113493 is about 336.8872214852. The cubic root of 113493 is about 48.4160875874.

It can be divided in two parts, 113 and 493, that added together give a palindrome (606).

The spelling of 113493 in words is "one hundred thirteen thousand, four hundred ninety-three".