113145 has 16 divisors (see below), whose sum is σ = 191040. Its totient is φ = 57024.

The previous prime is 113143. The next prime is 113147. The reversal of 113145 is 541311.

It is an interprime number because it is at equal distance from previous prime (113143) and next prime (113147).

It is not a de Polignac number, because 113145 - 2¹ = 113143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (113143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87 + ... + 483.

It is an arithmetic number, because the mean of its divisors is an integer number (11940).

2¹¹³¹⁴⁵ is an apocalyptic number.

113145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113145 is a deficient number, since it is larger than the sum of its proper divisors (77895).

113145 is a wasteful number, since it uses less digits than its factorization.

113145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424.

The product of its digits is 60, while the sum is 15.

The square root of 113145 is about 336.3703316287. The cubic root of 113145 is about 48.3665513492.

Adding to 113145 its reverse (541311), we get a palindrome (654456).

It can be divided in two parts, 1131 and 45, that added together give a triangular number (1176 = T₄₈).

The spelling of 113145 in words is "one hundred thirteen thousand, one hundred forty-five".