1402202161 has 2 divisors, whose sum is σ = 1402202162. Its totient is φ = 1402202160.

The previous prime is 1402202159. The next prime is 1402202239. The reversal of 1402202161 is 1612022041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1396442161 + 5760000 = 37369^2 + 2400^2 .

It is a cyclic number.

It is not a de Polignac number, because 1402202161 - 2¹ = 1402202159 is a prime.

Together with 1402202159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1402202141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701101080 + 701101081.

It is an arithmetic number, because the mean of its divisors is an integer number (701101081).

Almost surely, 2^1402202161 is an apocalyptic number.

It is an amenable number.

1402202161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1402202161 is an equidigital number, since it uses as much as digits as its factorization.

1402202161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1402202161 is about 37445.9899188151. The cubic root of 1402202161 is about 1119.2751903188.

The spelling of 1402202161 in words is "one billion, four hundred two million, two hundred two thousand, one hundred sixty-one".