1305401233 has 2 divisors, whose sum is σ = 1305401234. Its totient is φ = 1305401232.

The previous prime is 1305401231. The next prime is 1305401249. The reversal of 1305401233 is 3321045031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1029575569 + 275825664 = 32087^2 + 16608^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305401233 - 2¹ = 1305401231 is a prime.

Together with 1305401231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1305401231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652700616 + 652700617.

It is an arithmetic number, because the mean of its divisors is an integer number (652700617).

Almost surely, 2^1305401233 is an apocalyptic number.

It is an amenable number.

1305401233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305401233 is an equidigital number, since it uses as much as digits as its factorization.

1305401233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 1305401233 is about 36130.3367407501. The cubic root of 1305401233 is about 1092.9022989741.

Adding to 1305401233 its reverse (3321045031), we get a palindrome (4626446264).

The spelling of 1305401233 in words is "one billion, three hundred five million, four hundred one thousand, two hundred thirty-three".