11572819 has 2 divisors, whose sum is σ = 11572820. Its totient is φ = 11572818.

The previous prime is 11572811. The next prime is 11572831. The reversal of 11572819 is 91827511.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11572819 - 2³ = 11572811 is a prime.

It is a super-2 number, since 2×11572819² = 267860279213522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11572811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5786409 + 5786410.

It is an arithmetic number, because the mean of its divisors is an integer number (5786410).

Almost surely, 2^11572819 is an apocalyptic number.

11572819 is a deficient number, since it is larger than the sum of its proper divisors (1).

11572819 is an equidigital number, since it uses as much as digits as its factorization.

11572819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 34.

The square root of 11572819 is about 3401.8846247338. The cubic root of 11572819 is about 226.1932914456.

The spelling of 11572819 in words is "eleven million, five hundred seventy-two thousand, eight hundred nineteen".