1305799225 has 24 divisors (see below), whose sum is σ = 1706676480. Its totient is φ = 988344000.

The previous prime is 1305799177. The next prime is 1305799273. The reversal of 1305799225 is 5229975031.

It is an interprime number because it is at equal distance from previous prime (1305799177) and next prime (1305799273).

It is not a de Polignac number, because 1305799225 - 2⁷ = 1305799097 is a prime.

It is a super-2 number, since 2×1305799225² = 3410223232021201250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 502680 + ... + 505270.

It is an arithmetic number, because the mean of its divisors is an integer number (71111520).

Almost surely, 2^1305799225 is an apocalyptic number.

It is an amenable number.

1305799225 is a deficient number, since it is larger than the sum of its proper divisors (400877255).

1305799225 is a wasteful number, since it uses less digits than its factorization.

1305799225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3681 (or 3676 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 1305799225 is about 36135.8440471507. The cubic root of 1305799225 is about 1093.0133560611.

The spelling of 1305799225 in words is "one billion, three hundred five million, seven hundred ninety-nine thousand, two hundred twenty-five".