1333442261 has 2 divisors, whose sum is σ = 1333442262. Its totient is φ = 1333442260.

The previous prime is 1333442197. The next prime is 1333442263. The reversal of 1333442261 is 1622443331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 912946225 + 420496036 = 30215^2 + 20506^2 .

It is a cyclic number.

It is not a de Polignac number, because 1333442261 - 2⁶ = 1333442197 is a prime.

Together with 1333442263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1333442263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 666721130 + 666721131.

It is an arithmetic number, because the mean of its divisors is an integer number (666721131).

Almost surely, 2^1333442261 is an apocalyptic number.

It is an amenable number.

1333442261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1333442261 is an equidigital number, since it uses as much as digits as its factorization.

1333442261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 29.

The square root of 1333442261 is about 36516.3286900532. The cubic root of 1333442261 is about 1100.6723880846.

Adding to 1333442261 its reverse (1622443331), we get a palindrome (2955885592).

The spelling of 1333442261 in words is "one billion, three hundred thirty-three million, four hundred forty-two thousand, two hundred sixty-one".