70845199 has 4 divisors (see below), whose sum is σ = 73130560. Its totient is φ = 68559840.

The previous prime is 70845191. The next prime is 70845233. The reversal of 70845199 is 99154807.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70845199 - 2³ = 70845191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70845191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142634 + ... + 1142695.

It is an arithmetic number, because the mean of its divisors is an integer number (18282640).

Almost surely, 2^70845199 is an apocalyptic number.

70845199 is a deficient number, since it is larger than the sum of its proper divisors (2285361).

70845199 is a wasteful number, since it uses less digits than its factorization.

70845199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2285360.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 70845199 is about 8416.9590114245. The cubic root of 70845199 is about 413.7806157160.

The spelling of 70845199 in words is "seventy million, eight hundred forty-five thousand, one hundred ninety-nine".