11361999 has 16 divisors (see below), whose sum is σ = 16652160. Its totient is φ = 6833760.

The previous prime is 11361983. The next prime is 11362063. The reversal of 11361999 is 99916311.

It is a happy number.

It is not a de Polignac number, because 11361999 - 2⁴ = 11361983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11361949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3349 + ... + 5825.

It is an arithmetic number, because the mean of its divisors is an integer number (1040760).

Almost surely, 2^11361999 is an apocalyptic number.

11361999 is a deficient number, since it is larger than the sum of its proper divisors (5290161).

11361999 is a wasteful number, since it uses less digits than its factorization.

11361999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630.

The product of its digits is 13122, while the sum is 39.

The square root of 11361999 is about 3370.7564432928. The cubic root of 11361999 is about 224.8113579343.

The spelling of 11361999 in words is "eleven million, three hundred sixty-one thousand, nine hundred ninety-nine".