1207162081 has 2 divisors, whose sum is σ = 1207162082. Its totient is φ = 1207162080.

The previous prime is 1207162063. The next prime is 1207162097. The reversal of 1207162081 is 1802617021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 873734481 + 333427600 = 29559^2 + 18260^2 .

It is a cyclic number.

It is not a de Polignac number, because 1207162081 - 2¹¹ = 1207160033 is a prime.

It is a super-2 number, since 2×1207162081² = 2914480579608501122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1207162181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603581040 + 603581041.

It is an arithmetic number, because the mean of its divisors is an integer number (603581041).

Almost surely, 2^1207162081 is an apocalyptic number.

It is an amenable number.

1207162081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1207162081 is an equidigital number, since it uses as much as digits as its factorization.

1207162081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 1207162081 is about 34744.2380978487. The cubic root of 1207162081 is about 1064.7685011901.

The spelling of 1207162081 in words is "one billion, two hundred seven million, one hundred sixty-two thousand, eighty-one".