13045140 has 108 divisors (see below), whose sum is σ = 41667444. Its totient is φ = 3303168.

The previous prime is 13045139. The next prime is 13045147. The reversal of 13045140 is 4154031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6170256 + 6874884 = 2484^2 + 2622^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13045147) 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 35 ways as a sum of consecutive naturals, for example, 95152 + ... + 95288.

Almost surely, 2^13045140 is an apocalyptic number.

13045140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13045140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20833722).

13045140 is an abundant number, since it is smaller than the sum of its proper divisors (28622304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13045140 is a wasteful number, since it uses less digits than its factorization.

13045140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 170 counting only the distinct ones).

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

The square root of 13045140 is about 3611.8056426115. The cubic root of 13045140 is about 235.4053062974.

Adding to 13045140 its reverse (4154031), we get a palindrome (17199171).

The spelling of 13045140 in words is "thirteen million, forty-five thousand, one hundred forty".