1305225043 has 2 divisors, whose sum is σ = 1305225044. Its totient is φ = 1305225042.

The previous prime is 1305225041. The next prime is 1305225059. The reversal of 1305225043 is 3405225031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1305225043 - 2¹ = 1305225041 is a prime.

It is a super-2 number, since 2×1305225043² = 3407224825748703698, which contains 22 as substring.

Together with 1305225041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1305224999 and 1305225017.

It is not a weakly prime, because it can be changed into another prime (1305225041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652612521 + 652612522.

It is an arithmetic number, because the mean of its divisors is an integer number (652612522).

Almost surely, 2^1305225043 is an apocalyptic number.

1305225043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305225043 is an equidigital number, since it uses as much as digits as its factorization.

1305225043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 1305225043 is about 36127.8984027579. The cubic root of 1305225043 is about 1092.8531270886.

The spelling of 1305225043 in words is "one billion, three hundred five million, two hundred twenty-five thousand, forty-three".