11195890 has 8 divisors (see below), whose sum is σ = 20152620. Its totient is φ = 4478352.

The previous prime is 11195887. The next prime is 11195893. The reversal of 11195890 is 9859111.

It is an interprime number because it is at equal distance from previous prime (11195887) and next prime (11195893).

It can be written as a sum of positive squares in 2 ways, for example, as 10169721 + 1026169 = 3189^2 + 1013^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11195893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559785 + ... + 559804.

Almost surely, 2^11195890 is an apocalyptic number.

11195890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11195890 is a deficient number, since it is larger than the sum of its proper divisors (8956730).

11195890 is a wasteful number, since it uses less digits than its factorization.

11195890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119596.

The product of its (nonzero) digits is 3240, while the sum is 34.

The square root of 11195890 is about 3346.0260010944. The cubic root of 11195890 is about 223.7104171420.

The spelling of 11195890 in words is "eleven million, one hundred ninety-five thousand, eight hundred ninety".