13740909 has 16 divisors (see below), whose sum is σ = 22549632. Its totient is φ = 7247808.

The previous prime is 13740907. The next prime is 13740911. The reversal of 13740909 is 90904731.

It is an interprime number because it is at equal distance from previous prime (13740907) and next prime (13740911).

It is not a de Polignac number, because 13740909 - 2¹ = 13740907 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13740909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13740901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24894 + ... + 25439.

It is an arithmetic number, because the mean of its divisors is an integer number (1409352).

Almost surely, 2^13740909 is an apocalyptic number.

It is an amenable number.

13740909 is a deficient number, since it is larger than the sum of its proper divisors (8808723).

13740909 is a wasteful number, since it uses less digits than its factorization.

13740909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50356.

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 13740909 is about 3706.8732106723. The cubic root of 13740909 is about 239.5181826698.

The spelling of 13740909 in words is "thirteen million, seven hundred forty thousand, nine hundred nine".