126281045 has 12 divisors (see below), whose sum is σ = 166566540. Its totient is φ = 91840320.

The previous prime is 126281039. The next prime is 126281069. The reversal of 126281045 is 540182621.

It can be written as a sum of positive squares in 2 ways, for example, as 69338929 + 56942116 = 8327^2 + 7546^2 .

It is a de Polignac number, because none of the positive numbers 2^k-126281045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 126280999 and 126281017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103760 + ... + 104969.

It is an arithmetic number, because the mean of its divisors is an integer number (13880545).

Almost surely, 2^126281045 is an apocalyptic number.

It is an amenable number.

126281045 is a deficient number, since it is larger than the sum of its proper divisors (40285495).

126281045 is a wasteful number, since it uses less digits than its factorization.

126281045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208756 (or 208745 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 126281045 is about 11237.4839265736. The cubic root of 126281045 is about 501.7022580582.

The spelling of 126281045 in words is "one hundred twenty-six million, two hundred eighty-one thousand, forty-five".