70143285 has 8 divisors (see below), whose sum is σ = 112229280. Its totient is φ = 37409744.

The previous prime is 70143263. The next prime is 70143287. The reversal of 70143285 is 58234107.

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 70143285 - 2⁵ = 70143253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70143287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2338095 + ... + 2338124.

It is an arithmetic number, because the mean of its divisors is an integer number (14028660).

Almost surely, 2^70143285 is an apocalyptic number.

It is an amenable number.

70143285 is a deficient number, since it is larger than the sum of its proper divisors (42085995).

70143285 is a wasteful number, since it uses less digits than its factorization.

70143285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4676227.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 70143285 is about 8375.1588044645. The cubic root of 70143285 is about 412.4095375549.

The spelling of 70143285 in words is "seventy million, one hundred forty-three thousand, two hundred eighty-five".