13801975 has 24 divisors (see below), whose sum is σ = 19284480. Its totient is φ = 9708000.

The previous prime is 13801969. The next prime is 13801981. The reversal of 13801975 is 57910831.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13801969) and next prime (13801981).

It is not a de Polignac number, because 13801975 - 2³ = 13801967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13801975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7716 + ... + 9334.

It is an arithmetic number, because the mean of its divisors is an integer number (803520).

Almost surely, 2^13801975 is an apocalyptic number.

13801975 is a deficient number, since it is larger than the sum of its proper divisors (5482505).

13801975 is a wasteful number, since it uses less digits than its factorization.

13801975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 13801975 is about 3715.1009407552. The cubic root of 13801975 is about 239.8724727579.

The spelling of 13801975 in words is "thirteen million, eight hundred one thousand, nine hundred seventy-five".