12262981 has 8 divisors (see below), whose sum is σ = 12547224. Its totient is φ = 11980800.

The previous prime is 12262937. The next prime is 12263029. The reversal of 12262981 is 18926221.

12262981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10660225 + 1602756 = 3265^2 + 1266^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12262981 - 2⁹ = 12262469 is a prime.

It is a super-2 number, since 2×12262981² = 300761406012722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12260981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20965 + ... + 21541.

It is an arithmetic number, because the mean of its divisors is an integer number (1568403).

Almost surely, 2^12262981 is an apocalyptic number.

It is an amenable number.

12262981 is a deficient number, since it is larger than the sum of its proper divisors (284243).

12262981 is an equidigital number, since it uses as much as digits as its factorization.

12262981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1031.

The product of its digits is 3456, while the sum is 31.

The square root of 12262981 is about 3501.8539375594. The cubic root of 12262981 is about 230.6032118086.

The spelling of 12262981 in words is "twelve million, two hundred sixty-two thousand, nine hundred eighty-one".