13875641 has 8 divisors (see below), whose sum is σ = 15028104. Its totient is φ = 12735360.

The previous prime is 13875637. The next prime is 13875649. The reversal of 13875641 is 14657831.

It can be written as a sum of positive squares in 4 ways, for example, as 156025 + 13719616 = 395^2 + 3704^2 .

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 13875641 - 2² = 13875637 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13875649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596 + ... + 5301.

It is an arithmetic number, because the mean of its divisors is an integer number (1878513).

Almost surely, 2^13875641 is an apocalyptic number.

It is an amenable number.

13875641 is a deficient number, since it is larger than the sum of its proper divisors (1152463).

13875641 is a wasteful number, since it uses less digits than its factorization.

13875641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6091.

The product of its digits is 20160, while the sum is 35.

The square root of 13875641 is about 3725.0021476504. The cubic root of 13875641 is about 240.2984770235.

The spelling of 13875641 in words is "thirteen million, eight hundred seventy-five thousand, six hundred forty-one".