11916215 has 8 divisors (see below), whose sum is σ = 14336880. Its totient is φ = 9508032.

The previous prime is 11916197. The next prime is 11916241. The reversal of 11916215 is 51261911.

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 11916215 - 2²² = 7721911 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869 + ... + 4958.

It is an arithmetic number, because the mean of its divisors is an integer number (1792110).

Almost surely, 2^11916215 is an apocalyptic number.

11916215 is a deficient number, since it is larger than the sum of its proper divisors (2420665).

11916215 is an equidigital number, since it uses as much as digits as its factorization.

11916215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6241.

The product of its digits is 540, while the sum is 26.

The square root of 11916215 is about 3451.9871088983. The cubic root of 11916215 is about 228.4087709016.

The spelling of 11916215 in words is "eleven million, nine hundred sixteen thousand, two hundred fifteen".