12291130 has 8 divisors (see below), whose sum is σ = 22124052. Its totient is φ = 4916448.

The previous prime is 12291121. The next prime is 12291179. The reversal of 12291130 is 3119221.

It can be written as a sum of positive squares in 2 ways, for example, as 12089529 + 201601 = 3477^2 + 449^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12291098 and 12291107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614547 + ... + 614566.

Almost surely, 2^12291130 is an apocalyptic number.

12291130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12291130 is a deficient number, since it is larger than the sum of its proper divisors (9832922).

12291130 is a wasteful number, since it uses less digits than its factorization.

12291130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229120.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 12291130 is about 3505.8707905455. The cubic root of 12291130 is about 230.7795226464.

It can be divided in two parts, 12291 and 130, that added together give a palindrome (12421).

The spelling of 12291130 in words is "twelve million, two hundred ninety-one thousand, one hundred thirty".