70143018 has 32 divisors (see below), whose sum is σ = 157980672. Its totient is φ = 20569200.

The previous prime is 70143013. The next prime is 70143061. The reversal of 70143018 is 81034107.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70143011) 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 15 ways as a sum of consecutive naturals, for example, 15096 + ... + 19187.

It is an arithmetic number, because the mean of its divisors is an integer number (4936896).

Almost surely, 2^70143018 is an apocalyptic number.

70143018 is an abundant number, since it is smaller than the sum of its proper divisors (87837654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70143018 is a wasteful number, since it uses less digits than its factorization.

70143018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34330.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 70143018 is about 8375.1428644531. The cubic root of 70143018 is about 412.4090142761.

The spelling of 70143018 in words is "seventy million, one hundred forty-three thousand, eighteen".