70144473 has 16 divisors (see below), whose sum is σ = 107135360. Its totient is φ = 39989376.

The previous prime is 70144471. The next prime is 70144507. The reversal of 70144473 is 37444107.

It is not a de Polignac number, because 70144473 - 2¹ = 70144471 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70144473.

It is not an unprimeable number, because it can be changed into a prime (70144471) 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 15 ways as a sum of consecutive naturals, for example, 5943 + ... + 13251.

It is an arithmetic number, because the mean of its divisors is an integer number (6695960).

Almost surely, 2^70144473 is an apocalyptic number.

It is an amenable number.

70144473 is a deficient number, since it is larger than the sum of its proper divisors (36990887).

70144473 is a wasteful number, since it uses less digits than its factorization.

70144473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7776.

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 70144473 is about 8375.2297281925. The cubic root of 70144473 is about 412.4118658356.

The spelling of 70144473 in words is "seventy million, one hundred forty-four thousand, four hundred seventy-three".