306347247245 has 24 divisors (see below), whose sum is σ = 399808701000. Its totient is φ = 225237632256.

The previous prime is 306347247221. The next prime is 306347247299. The reversal of 306347247245 is 542742743603.

It can be written as a sum of positive squares in 12 ways, for example, as 35344752004 + 271002495241 = 188002^2 + 520579^2 .

It is not a de Polignac number, because 306347247245 - 2⁶ = 306347247181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 306347247245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 598070 + ... + 985079.

It is an arithmetic number, because the mean of its divisors is an integer number (16658695875).

Almost surely, 2^306347247245 is an apocalyptic number.

It is an amenable number.

306347247245 is a deficient number, since it is larger than the sum of its proper divisors (93461453755).

306347247245 is a wasteful number, since it uses less digits than its factorization.

306347247245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1583409 (or 1583396 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 47.

The spelling of 306347247245 in words is "three hundred six billion, three hundred forty-seven million, two hundred forty-seven thousand, two hundred forty-five".