13740013 has 4 divisors (see below), whose sum is σ = 15702880. Its totient is φ = 11777148.

The previous prime is 13739989. The next prime is 13740017. The reversal of 13740013 is 31004731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13740013 - 2⁵ = 13739981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13740017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 981423 + ... + 981436.

It is an arithmetic number, because the mean of its divisors is an integer number (3925720).

Almost surely, 2^13740013 is an apocalyptic number.

It is an amenable number.

13740013 is a deficient number, since it is larger than the sum of its proper divisors (1962867).

13740013 is an equidigital number, since it uses as much as digits as its factorization.

13740013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962866.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 13740013 is about 3706.7523521271. The cubic root of 13740013 is about 239.5129764893.

Adding to 13740013 its reverse (31004731), we get a palindrome (44744744).

The spelling of 13740013 in words is "thirteen million, seven hundred forty thousand, thirteen".