1305385097 has 8 divisors (see below), whose sum is σ = 1335833856. Its totient is φ = 1275047872.

The previous prime is 1305385043. The next prime is 1305385181. The reversal of 1305385097 is 7905835031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1305385097 - 2¹⁸ = 1305122953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1305385397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3968 + ... + 51249.

It is an arithmetic number, because the mean of its divisors is an integer number (166979232).

Almost surely, 2^1305385097 is an apocalyptic number.

It is an amenable number.

1305385097 is a deficient number, since it is larger than the sum of its proper divisors (30448759).

1305385097 is an equidigital number, since it uses as much as digits as its factorization.

1305385097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55767.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 1305385097 is about 36130.1134374084. The cubic root of 1305385097 is about 1092.8977958518.

The spelling of 1305385097 in words is "one billion, three hundred five million, three hundred eighty-five thousand, ninety-seven".