11978195 has 8 divisors (see below), whose sum is σ = 14762544. Its totient is φ = 9323424.

The previous prime is 11978177. The next prime is 11978231. The reversal of 11978195 is 59187911.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11978195 is a prime.

It is a Duffinian 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, 32189 + ... + 32558.

It is an arithmetic number, because the mean of its divisors is an integer number (1845318).

Almost surely, 2^11978195 is an apocalyptic number.

11978195 is a deficient number, since it is larger than the sum of its proper divisors (2784349).

11978195 is an equidigital number, since it uses as much as digits as its factorization.

11978195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64789.

The product of its digits is 22680, while the sum is 41.

The square root of 11978195 is about 3460.9529034646. The cubic root of 11978195 is about 228.8040950230.

The spelling of 11978195 in words is "eleven million, nine hundred seventy-eight thousand, one hundred ninety-five".