14961215 has 4 divisors (see below), whose sum is σ = 17953464. Its totient is φ = 11968968.

The previous prime is 14961157. The next prime is 14961217. The reversal of 14961215 is 51216941.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14961215 - 2¹⁰ = 14960191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14961217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1496117 + ... + 1496126.

It is an arithmetic number, because the mean of its divisors is an integer number (4488366).

Almost surely, 2^14961215 is an apocalyptic number.

14961215 is a deficient number, since it is larger than the sum of its proper divisors (2992249).

14961215 is an equidigital number, since it uses as much as digits as its factorization.

14961215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992248.

The product of its digits is 2160, while the sum is 29.

The square root of 14961215 is about 3867.9729833596. The cubic root of 14961215 is about 246.4084638878.

The spelling of 14961215 in words is "fourteen million, nine hundred sixty-one thousand, two hundred fifteen".