785745245 has 4 divisors (see below), whose sum is σ = 942894300. Its totient is φ = 628596192.

The previous prime is 785745229. The next prime is 785745269. The reversal of 785745245 is 542547587.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 542547587 = 3917 ⋅138511.

It can be written as a sum of positive squares in 2 ways, for example, as 431891524 + 353853721 = 20782^2 + 18811^2 .

It is a cyclic number.

It is not a de Polignac number, because 785745245 - 2⁴ = 785745229 is a prime.

It is a super-2 number, since 2×785745245² = 1234791180080220050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 785745245.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 78574520 + ... + 78574529.

It is an arithmetic number, because the mean of its divisors is an integer number (235723575).

Almost surely, 2^785745245 is an apocalyptic number.

It is an amenable number.

785745245 is a deficient number, since it is larger than the sum of its proper divisors (157149055).

785745245 is a wasteful number, since it uses less digits than its factorization.

785745245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157149054.

The product of its digits is 1568000, while the sum is 47.

The square root of 785745245 is about 28031.1477645850. The cubic root of 785745245 is about 922.7709639955.

The spelling of 785745245 in words is "seven hundred eighty-five million, seven hundred forty-five thousand, two hundred forty-five".