1206435061 has 24 divisors (see below), whose sum is σ = 1388157480. Its totient is φ = 1046013696.

The previous prime is 1206435059. The next prime is 1206435067. The reversal of 1206435061 is 1605346021.

It can be written as a sum of positive squares in 12 ways, for example, as 690690961 + 515744100 = 26281^2 + 22710^2 .

It is not a de Polignac number, because 1206435061 - 2¹ = 1206435059 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206435067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178011 + ... + 184663.

It is an arithmetic number, because the mean of its divisors is an integer number (57839895).

Almost surely, 2^1206435061 is an apocalyptic number.

It is an amenable number.

1206435061 is a deficient number, since it is larger than the sum of its proper divisors (181722419).

1206435061 is a wasteful number, since it uses less digits than its factorization.

1206435061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6745 (or 6732 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 1206435061 is about 34733.7740679011. The cubic root of 1206435061 is about 1064.5547040363.

The spelling of 1206435061 in words is "one billion, two hundred six million, four hundred thirty-five thousand, sixty-one".