13140732 has 24 divisors (see below), whose sum is σ = 33449472. Its totient is φ = 3982000.

The previous prime is 13140731. The next prime is 13140749. The reversal of 13140732 is 23704131.

It is a junction number, because it is equal to n+sod(n) for n = 13140699 and 13140708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140731) 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 7 ways as a sum of consecutive naturals, for example, 49644 + ... + 49907.

It is an arithmetic number, because the mean of its divisors is an integer number (1393728).

Almost surely, 2^13140732 is an apocalyptic number.

13140732 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13140732 is an abundant number, since it is smaller than the sum of its proper divisors (20308740).

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

13140732 is a wasteful number, since it uses less digits than its factorization.

13140732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99569 (or 99567 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13140732 is about 3625.0147585906. The cubic root of 13140732 is about 235.9789074321.

Adding to 13140732 its reverse (23704131), we get a palindrome (36844863).

It can be divided in two parts, 131407 and 32, that multiplied together give a palindrome (4205024).

The spelling of 13140732 in words is "thirteen million, one hundred forty thousand, seven hundred thirty-two".