11919147 has 8 divisors (see below), whose sum is σ = 16071120. Its totient is φ = 7856640.

The previous prime is 11919139. The next prime is 11919157. The reversal of 11919147 is 74191911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11919147 - 2³ = 11919139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11919107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22054 + ... + 22587.

It is an arithmetic number, because the mean of its divisors is an integer number (2008890).

Almost surely, 2^11919147 is an apocalyptic number.

11919147 is a deficient number, since it is larger than the sum of its proper divisors (4151973).

11919147 is an equidigital number, since it uses as much as digits as its factorization.

11919147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44733.

The product of its digits is 2268, while the sum is 33.

The square root of 11919147 is about 3452.4117657081. The cubic root of 11919147 is about 228.4275027891.

The spelling of 11919147 in words is "eleven million, nine hundred nineteen thousand, one hundred forty-seven".