70143073 has 32 divisors (see below), whose sum is σ = 95477760. Its totient is φ = 49757760.

The previous prime is 70143061. The next prime is 70143109. The reversal of 70143073 is 37034107.

It is a happy number.

It is not a de Polignac number, because 70143073 - 2¹³ = 70134881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70143013) 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 31 ways as a sum of consecutive naturals, for example, 78636 + ... + 79522.

It is an arithmetic number, because the mean of its divisors is an integer number (2983680).

Almost surely, 2^70143073 is an apocalyptic number.

It is an amenable number.

70143073 is a deficient number, since it is larger than the sum of its proper divisors (25334687).

70143073 is a wasteful number, since it uses less digits than its factorization.

70143073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 70143073 is about 8375.1461479786. The cubic root of 70143073 is about 412.4091220677.

The spelling of 70143073 in words is "seventy million, one hundred forty-three thousand, seventy-three".