12405130 has 16 divisors (see below), whose sum is σ = 22380264. Its totient is φ = 4950720.

The previous prime is 12405091. The next prime is 12405137. The reversal of 12405130 is 3150421.

12405130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 8173881 + 4231249 = 2859^2 + 2057^2 .

It is not an unprimeable number, because it can be changed into a prime (12405137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4264 + ... + 6556.

Almost surely, 2^12405130 is an apocalyptic number.

12405130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12405130 is a deficient number, since it is larger than the sum of its proper divisors (9975134).

12405130 is a wasteful number, since it uses less digits than its factorization.

12405130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2841.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12405130 is about 3522.0917080621. The cubic root of 12405130 is about 231.4908199816.

Adding to 12405130 its reverse (3150421), we get a palindrome (15555551).

The spelling of 12405130 in words is "twelve million, four hundred five thousand, one hundred thirty".