1402206161 has 2 divisors, whose sum is σ = 1402206162. Its totient is φ = 1402206160.

The previous prime is 1402206139. The next prime is 1402206187. The reversal of 1402206161 is 1616022041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1068047761 + 334158400 = 32681^2 + 18280^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402206161 - 2²⁶ = 1335097297 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1402202161) 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 as a sum of consecutive naturals, namely, 701103080 + 701103081.

It is an arithmetic number, because the mean of its divisors is an integer number (701103081).

Almost surely, 2^1402206161 is an apocalyptic number.

It is an amenable number.

1402206161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402206161 is an equidigital number, since it uses as much as digits as its factorization.

1402206161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1402206161 is about 37446.0433290354. The cubic root of 1402206161 is about 1119.2762546201.

The spelling of 1402206161 in words is "one billion, four hundred two million, two hundred six thousand, one hundred sixty-one".