13941609 has 16 divisors (see below), whose sum is σ = 20374464. Its totient is φ = 8409600.

The previous prime is 13941607. The next prime is 13941617. The reversal of 13941609 is 90614931.

It is not a de Polignac number, because 13941609 - 2¹ = 13941607 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 13941609.

It is not an unprimeable number, because it can be changed into a prime (13941607) 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, 7077 + ... + 8829.

It is an arithmetic number, because the mean of its divisors is an integer number (1273404).

Almost surely, 2^13941609 is an apocalyptic number.

It is an amenable number.

13941609 is a deficient number, since it is larger than the sum of its proper divisors (6432855).

13941609 is a wasteful number, since it uses less digits than its factorization.

13941609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 13941609 is about 3733.8464081962. The cubic root of 13941609 is about 240.6786865985.

It can be divided in two parts, 1394 and 1609, that added together give a palindrome (3003).

The spelling of 13941609 in words is "thirteen million, nine hundred forty-one thousand, six hundred nine".