12972130 has 16 divisors (see below), whose sum is σ = 23483520. Its totient is φ = 5159152.

The previous prime is 12972107. The next prime is 12972131. The reversal of 12972130 is 3127921.

It is a junction number, because it is equal to n+sod(n) for n = 12972095 and 12972104.

It is not an unprimeable number, because it can be changed into a prime (12972131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1834 + ... + 5413.

It is an arithmetic number, because the mean of its divisors is an integer number (1467720).

Almost surely, 2^12972130 is an apocalyptic number.

12972130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12972130 is a deficient number, since it is larger than the sum of its proper divisors (10511390).

12972130 is a wasteful number, since it uses less digits than its factorization.

12972130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7433.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 12972130 is about 3601.6843281998. The cubic root of 12972130 is about 234.9653185578.

The spelling of 12972130 in words is "twelve million, nine hundred seventy-two thousand, one hundred thirty".