12050981 has 4 divisors (see below), whose sum is σ = 12278412. Its totient is φ = 11823552.

The previous prime is 12050953. The next prime is 12051023. The reversal of 12050981 is 18905021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6806881 + 5244100 = 2609^2 + 2290^2 .

It is a cyclic number.

It is not a de Polignac number, because 12050981 - 2⁶ = 12050917 is a prime.

It is a super-2 number, since 2×12050981² = 290452286124722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12050981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12050081) 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 3 ways as a sum of consecutive naturals, for example, 113636 + ... + 113741.

It is an arithmetic number, because the mean of its divisors is an integer number (3069603).

Almost surely, 2^12050981 is an apocalyptic number.

It is an amenable number.

12050981 is a deficient number, since it is larger than the sum of its proper divisors (227431).

12050981 is an equidigital number, since it uses as much as digits as its factorization.

12050981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227430.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 12050981 is about 3471.4522897485. The cubic root of 12050981 is about 229.2666053291.

It can be divided in two parts, 12050 and 981, that added together give a palindrome (13031).

The spelling of 12050981 in words is "twelve million, fifty thousand, nine hundred eighty-one".