13140293 has 2 divisors, whose sum is σ = 13140294. Its totient is φ = 13140292.

The previous prime is 13140289. The next prime is 13140313. The reversal of 13140293 is 39204131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11607649 + 1532644 = 3407^2 + 1238^2 .

It is an emirp because it is prime and its reverse (39204131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13140293 - 2² = 13140289 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13140593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6570146 + 6570147.

It is an arithmetic number, because the mean of its divisors is an integer number (6570147).

Almost surely, 2^13140293 is an apocalyptic number.

It is an amenable number.

13140293 is a deficient number, since it is larger than the sum of its proper divisors (1).

13140293 is an equidigital number, since it uses as much as digits as its factorization.

13140293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 13140293 is about 3624.9542066073. The cubic root of 13140293 is about 235.9762795751.

The spelling of 13140293 in words is "thirteen million, one hundred forty thousand, two hundred ninety-three".