12287090 has 16 divisors (see below), whose sum is σ = 23418072. Its totient is φ = 4625664.

The previous prime is 12287089. The next prime is 12287101. The reversal of 12287090 is 9078221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12229009 + 58081 = 3497^2 + 241^2 .

It is a Curzon number.

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, 35969 + ... + 36308.

Almost surely, 2^12287090 is an apocalyptic number.

12287090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12287090 is a deficient number, since it is larger than the sum of its proper divisors (11130982).

12287090 is a wasteful number, since it uses less digits than its factorization.

12287090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72301.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 12287090 is about 3505.2945667946. The cubic root of 12287090 is about 230.7542347235.

The spelling of 12287090 in words is "twelve million, two hundred eighty-seven thousand, ninety".