13850215 has 4 divisors (see below), whose sum is σ = 16620264. Its totient is φ = 11080168.

The previous prime is 13850159. The next prime is 13850227. The reversal of 13850215 is 51205831.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51205831 = 31 ⋅1651801.

It is a cyclic number.

It is not a de Polignac number, because 13850215 - 2¹⁹ = 13325927 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13850215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385017 + ... + 1385026.

It is an arithmetic number, because the mean of its divisors is an integer number (4155066).

Almost surely, 2^13850215 is an apocalyptic number.

13850215 is a deficient number, since it is larger than the sum of its proper divisors (2770049).

13850215 is an equidigital number, since it uses as much as digits as its factorization.

13850215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2770048.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 13850215 is about 3721.5876988189. The cubic root of 13850215 is about 240.1516113807.

The spelling of 13850215 in words is "thirteen million, eight hundred fifty thousand, two hundred fifteen".