1336217081 has 2 divisors, whose sum is σ = 1336217082. Its totient is φ = 1336217080.

The previous prime is 1336217059. The next prime is 1336217093. The reversal of 1336217081 is 1807126331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1246725481 + 89491600 = 35309^2 + 9460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1336217081 - 2¹⁸ = 1335954937 is a prime.

It is a super-2 number, since 2×1336217081² = 3570952175112321122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1336217011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 668108540 + 668108541.

It is an arithmetic number, because the mean of its divisors is an integer number (668108541).

Almost surely, 2^1336217081 is an apocalyptic number.

It is an amenable number.

1336217081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1336217081 is an equidigital number, since it uses as much as digits as its factorization.

1336217081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 1336217081 is about 36554.3031803371. The cubic root of 1336217081 is about 1101.4353386756.

The spelling of 1336217081 in words is "one billion, three hundred thirty-six million, two hundred seventeen thousand, eighty-one".