12911070 has 32 divisors (see below), whose sum is σ = 32618880. Its totient is φ = 3261600.

The previous prime is 12911057. The next prime is 12911071. The reversal of 12911070 is 7011921.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12911071) 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 15 ways as a sum of consecutive naturals, for example, 10756 + ... + 11895.

It is an arithmetic number, because the mean of its divisors is an integer number (1019340).

Almost surely, 2^12911070 is an apocalyptic number.

12911070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12911070 is an abundant number, since it is smaller than the sum of its proper divisors (19707810).

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

12911070 is a wasteful number, since it uses less digits than its factorization.

12911070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22680.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 12911070 is about 3593.1977401752. The cubic root of 12911070 is about 234.5960769122.

Adding to 12911070 its reverse (7011921), we get a palindrome (19922991).

The spelling of 12911070 in words is "twelve million, nine hundred eleven thousand, seventy".