11145890 has 16 divisors (see below), whose sum is σ = 22928832. Its totient is φ = 3821424.

The previous prime is 11145839. The next prime is 11145899. The reversal of 11145890 is 9854111.

It is not an unprimeable number, because it can be changed into a prime (11145899) 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, 79544 + ... + 79683.

It is an arithmetic number, because the mean of its divisors is an integer number (1433052).

Almost surely, 2^11145890 is an apocalyptic number.

11145890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11145890 is an abundant number, since it is smaller than the sum of its proper divisors (11782942).

11145890 is a wasteful number, since it uses less digits than its factorization.

11145890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159241.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 11145890 is about 3338.5460907407. The cubic root of 11145890 is about 223.3768955395.

The spelling of 11145890 in words is "eleven million, one hundred forty-five thousand, eight hundred ninety".