12126490 has 8 divisors (see below), whose sum is σ = 21827700. Its totient is φ = 4850592.

The previous prime is 12126481. The next prime is 12126493. The reversal of 12126490 is 9462121.

It can be written as a sum of positive squares in 2 ways, for example, as 11758041 + 368449 = 3429^2 + 607^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12126493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606315 + ... + 606334.

Almost surely, 2^12126490 is an apocalyptic number.

12126490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12126490 is a deficient number, since it is larger than the sum of its proper divisors (9701210).

12126490 is a wasteful number, since it uses less digits than its factorization.

12126490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212656.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 12126490 is about 3482.3110142548. The cubic root of 12126490 is about 229.7444546776.

The spelling of 12126490 in words is "twelve million, one hundred twenty-six thousand, four hundred ninety".