11215590 has 32 divisors (see below), whose sum is σ = 27085536. Its totient is φ = 2972160.

The previous prime is 11215579. The next prime is 11215601. The reversal of 11215590 is 9551211.

11215590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11215579) and next prime (11215601).

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 11215590.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4110 + ... + 6270.

It is an arithmetic number, because the mean of its divisors is an integer number (846423).

Almost surely, 2^11215590 is an apocalyptic number.

11215590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11215590 is an abundant number, since it is smaller than the sum of its proper divisors (15869946).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11215590 is a wasteful number, since it uses less digits than its factorization.

11215590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2344.

The product of its (nonzero) digits is 450, while the sum is 24.

The square root of 11215590 is about 3348.9684979110. The cubic root of 11215590 is about 223.8415519564.

The spelling of 11215590 in words is "eleven million, two hundred fifteen thousand, five hundred ninety".