12999060 has 72 divisors (see below), whose sum is σ = 39724776. Its totient is φ = 3440640.

The previous prime is 12999053. The next prime is 12999061. The reversal of 12999060 is 6099921.

It can be written as a sum of positive squares in 4 ways, for example, as 5934096 + 7064964 = 2436^2 + 2658^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12999061) 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 23 ways as a sum of consecutive naturals, for example, 46120 + ... + 46400.

It is an arithmetic number, because the mean of its divisors is an integer number (551733).

Almost surely, 2^12999060 is an apocalyptic number.

12999060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12999060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19862388).

12999060 is an abundant number, since it is smaller than the sum of its proper divisors (26725716).

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

12999060 is a wasteful number, since it uses less digits than its factorization.

12999060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 548 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 12999060 is about 3605.4209185614. The cubic root of 12999060 is about 235.1278013160.

The spelling of 12999060 in words is "twelve million, nine hundred ninety-nine thousand, sixty".