113445 has 12 divisors (see below), whose sum is σ = 196716. Its totient is φ = 60480.

The previous prime is 113437. The next prime is 113453. The reversal of 113445 is 544311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (113437) and next prime (113453).

It can be written as a sum of positive squares in 2 ways, for example, as 12321 + 101124 = 111^2 + 318^2 .

It is not a de Polignac number, because 113445 - 2³ = 113437 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

113445 is a lucky number.

It is a plaindrome in base 10 and base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1216 + ... + 1305.

It is an arithmetic number, because the mean of its divisors is an integer number (16393).

2¹¹³⁴⁴⁵ is an apocalyptic number.

113445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113445 is a deficient number, since it is larger than the sum of its proper divisors (83271).

113445 is a wasteful number, since it uses less digits than its factorization.

113445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2532 (or 2529 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 113445 is about 336.8159734929. The cubic root of 113445 is about 48.4092610287.

Adding to 113445 its reverse (544311), we get a palindrome (657756).

The spelling of 113445 in words is "one hundred thirteen thousand, four hundred forty-five".