12749130 has 64 divisors (see below), whose sum is σ = 35493120. Its totient is φ = 3250368.

The previous prime is 12749123. The next prime is 12749131. The reversal of 12749130 is 3194721.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 12749094 and 12749103.

It is not an unprimeable number, because it can be changed into a prime (12749131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5184 + ... + 7236.

It is an arithmetic number, because the mean of its divisors is an integer number (554580).

Almost surely, 2^12749130 is an apocalyptic number.

12749130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12749130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17746560).

12749130 is an abundant number, since it is smaller than the sum of its proper divisors (22743990).

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

12749130 is a wasteful number, since it uses less digits than its factorization.

12749130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2092 (or 2086 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 12749130 is about 3570.5923878259. The cubic root of 12749130 is about 233.6111226681.

It can be divided in two parts, 1274 and 9130, that added together give a square (10404 = 102²).

The spelling of 12749130 in words is "twelve million, seven hundred forty-nine thousand, one hundred thirty".