12491130 has 32 divisors (see below), whose sum is σ = 30124224. Its totient is φ = 3314816.

The previous prime is 12491071. The next prime is 12491131. The reversal of 12491130 is 3119421.

It is a junction number, because it is equal to n+sod(n) for n = 12491097 and 12491106.

It is not an unprimeable number, because it can be changed into a prime (12491131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6097 + ... + 7883.

It is an arithmetic number, because the mean of its divisors is an integer number (941382).

Almost surely, 2^12491130 is an apocalyptic number.

12491130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12491130 is an abundant number, since it is smaller than the sum of its proper divisors (17633094).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12491130 is a wasteful number, since it uses less digits than its factorization.

12491130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 12491130 is about 3534.2792758920. The cubic root of 12491130 is about 232.0245341672.

It can be divided in two parts, 12491 and 130, that added together give a palindrome (12621).

The spelling of 12491130 in words is "twelve million, four hundred ninety-one thousand, one hundred thirty".