1333890161 has 2 divisors, whose sum is σ = 1333890162. Its totient is φ = 1333890160.

The previous prime is 1333890109. The next prime is 1333890197. The reversal of 1333890161 is 1610983331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1186389136 + 147501025 = 34444^2 + 12145^2 .

It is an emirp because it is prime and its reverse (1610983331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1333890161 - 2⁶ = 1333890097 is a prime.

It is a super-2 number, since 2×1333890161² = 3558525923225211842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1333190161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666945080 + 666945081.

It is an arithmetic number, because the mean of its divisors is an integer number (666945081).

Almost surely, 2^1333890161 is an apocalyptic number.

It is an amenable number.

1333890161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1333890161 is an equidigital number, since it uses as much as digits as its factorization.

1333890161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1333890161 is about 36522.4610479633. The cubic root of 1333890161 is about 1100.7956120114.

The spelling of 1333890161 in words is "one billion, three hundred thirty-three million, eight hundred ninety thousand, one hundred sixty-one".