126181061 has 8 divisors (see below), whose sum is σ = 127420920. Its totient is φ = 124947648.

The previous prime is 126181043. The next prime is 126181079. The reversal of 126181061 is 160181621.

It is an interprime number because it is at equal distance from previous prime (126181043) and next prime (126181079).

It can be written as a sum of positive squares in 4 ways, for example, as 100120036 + 26061025 = 10006^2 + 5105^2 .

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 126181061 - 2¹⁰ = 126180037 is a prime.

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 126181061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126181031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43715 + ... + 46511.

It is an arithmetic number, because the mean of its divisors is an integer number (15927615).

Almost surely, 2^126181061 is an apocalyptic number.

It is an amenable number.

126181061 is a deficient number, since it is larger than the sum of its proper divisors (1239859).

126181061 is a wasteful number, since it uses less digits than its factorization.

126181061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3223.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 126181061 is about 11233.0343629849. The cubic root of 126181061 is about 501.5698142087.

The spelling of 126181061 in words is "one hundred twenty-six million, one hundred eighty-one thousand, sixty-one".