799242545 has 4 divisors (see below), whose sum is σ = 959091060. Its totient is φ = 639394032.

The previous prime is 799242503. The next prime is 799242551. The reversal of 799242545 is 545242997.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545242997 = 13 ⋅41941769.

It can be written as a sum of positive squares in 2 ways, for example, as 318229921 + 481012624 = 17839^2 + 21932^2 .

It is a cyclic number.

It is not a de Polignac number, because 799242545 - 2¹² = 799238449 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 799242545.

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, 79924250 + ... + 79924259.

It is an arithmetic number, because the mean of its divisors is an integer number (239772765).

Almost surely, 2^799242545 is an apocalyptic number.

It is an amenable number.

799242545 is a deficient number, since it is larger than the sum of its proper divisors (159848515).

799242545 is a wasteful number, since it uses less digits than its factorization.

799242545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159848514.

The product of its digits is 907200, while the sum is 47.

The square root of 799242545 is about 28270.8780373019. The cubic root of 799242545 is about 928.0246913175.

The spelling of 799242545 in words is "seven hundred ninety-nine million, two hundred forty-two thousand, five hundred forty-five".