13140145 has 8 divisors (see below), whose sum is σ = 15958656. Its totient is φ = 10385136.

The previous prime is 13140137. The next prime is 13140151. The reversal of 13140145 is 54104131.

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 13140145 - 2³ = 13140137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15417 + ... + 16246.

It is an arithmetic number, because the mean of its divisors is an integer number (1994832).

Almost surely, 2^13140145 is an apocalyptic number.

It is an amenable number.

13140145 is a deficient number, since it is larger than the sum of its proper divisors (2818511).

13140145 is an equidigital number, since it uses as much as digits as its factorization.

13140145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31751.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 13140145 is about 3624.9337924988. The cubic root of 13140145 is about 235.9753936329.

Adding to 13140145 its reverse (54104131), we get a palindrome (67244276).

The spelling of 13140145 in words is "thirteen million, one hundred forty thousand, one hundred forty-five".