11949215 has 16 divisors (see below), whose sum is σ = 15269472. Its totient is φ = 8945664.

The previous prime is 11949199. The next prime is 11949239. The reversal of 11949215 is 51294911.

It is a cyclic number.

It is not a de Polignac number, because 11949215 - 2⁴ = 11949199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21572 + ... + 22118.

It is an arithmetic number, because the mean of its divisors is an integer number (954342).

Almost surely, 2^11949215 is an apocalyptic number.

11949215 is a deficient number, since it is larger than the sum of its proper divisors (3320257).

11949215 is a wasteful number, since it uses less digits than its factorization.

11949215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826.

The product of its digits is 3240, while the sum is 32.

The square root of 11949215 is about 3456.7636598414. The cubic root of 11949215 is about 228.6194234222.

It can be divided in two parts, 119 and 49215, that multiplied together give a palindrome (5856585).

The spelling of 11949215 in words is "eleven million, nine hundred forty-nine thousand, two hundred fifteen".