1206016081 has 2 divisors, whose sum is σ = 1206016082. Its totient is φ = 1206016080.

The previous prime is 1206015997. The next prime is 1206016087. The reversal of 1206016081 is 1806106021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1170255681 + 35760400 = 34209^2 + 5980^2 .

It is an emirp because it is prime and its reverse (1806106021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1206016081 - 2¹³ = 1206007889 is a prime.

It is a super-2 number, since 2×1206016081² = 2908949575261197122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1206016087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603008040 + 603008041.

It is an arithmetic number, because the mean of its divisors is an integer number (603008041).

Almost surely, 2^1206016081 is an apocalyptic number.

It is an amenable number.

1206016081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206016081 is an equidigital number, since it uses as much as digits as its factorization.

1206016081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1206016081 is about 34727.7422387347. The cubic root of 1206016081 is about 1064.4314541995.

The spelling of 1206016081 in words is "one billion, two hundred six million, sixteen thousand, eighty-one".