13140031 has 8 divisors (see below), whose sum is σ = 13955760. Its totient is φ = 12329088.

The previous prime is 13140013. The next prime is 13140047. The reversal of 13140031 is 13004131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13140031 - 2⁹ = 13139519 is a prime.

It is a super-2 number, since 2×13140031² = 345320829361922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13139993 and 13140020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13140011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5620 + ... + 7606.

It is an arithmetic number, because the mean of its divisors is an integer number (1744470).

Almost surely, 2^13140031 is an apocalyptic number.

13140031 is a deficient number, since it is larger than the sum of its proper divisors (815729).

13140031 is a wasteful number, since it uses less digits than its factorization.

13140031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2393.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 13140031 is about 3624.9180680396. The cubic root of 13140031 is about 235.9747112135.

Adding to 13140031 its reverse (13004131), we get a palindrome (26144162).

The spelling of 13140031 in words is "thirteen million, one hundred forty thousand, thirty-one".