126281061 has 12 divisors (see below), whose sum is σ = 182515788. Its totient is φ = 84136704.

The previous prime is 126281039. The next prime is 126281069. The reversal of 126281061 is 160182621.

It can be written as a sum of positive squares in 2 ways, for example, as 47692836 + 78588225 = 6906^2 + 8865^2 .

It is not a de Polignac number, because 126281061 - 2⁷ = 126280933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126281069) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17371 + ... + 23543.

It is an arithmetic number, because the mean of its divisors is an integer number (15209649).

Almost surely, 2^126281061 is an apocalyptic number.

It is an amenable number.

126281061 is a deficient number, since it is larger than the sum of its proper divisors (56234727).

126281061 is a wasteful number, since it uses less digits than its factorization.

126281061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8452 (or 8449 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 126281061 is about 11237.4846384767. The cubic root of 126281061 is about 501.7022792470.

It can be divided in two parts, 12628 and 1061, that added together give a square (13689 = 117²).

The spelling of 126281061 in words is "one hundred twenty-six million, two hundred eighty-one thousand, sixty-one".