2115290 has 16 divisors (see below), whose sum is σ = 3911112. Its totient is φ = 823104.

The previous prime is 2115277. The next prime is 2115301. The reversal of 2115290 is 925112.

It can be written as a sum of positive squares in 4 ways, for example, as 2036329 + 78961 = 1427^2 + 281^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2489 + ... + 3228.

2^2115290 is an apocalyptic number.

2115290 is a deficient number, since it is larger than the sum of its proper divisors (1795822).

2115290 is a wasteful number, since it uses less digits than its factorization.

2115290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5761.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 2115290 is about 1454.4036578612. The cubic root of 2115290 is about 128.3679597724.

The spelling of 2115290 in words is "two million, one hundred fifteen thousand, two hundred ninety".