70144571 has 12 divisors (see below), whose sum is σ = 81531216. Its totient is φ = 59116320.

The previous prime is 70144541. The next prime is 70144583. The reversal of 70144571 is 17544107.

It is not a de Polignac number, because 70144571 - 2⁶ = 70144507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70144541) 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 11 ways as a sum of consecutive naturals, for example, 24701 + ... + 27393.

It is an arithmetic number, because the mean of its divisors is an integer number (6794268).

Almost surely, 2^70144571 is an apocalyptic number.

70144571 is a deficient number, since it is larger than the sum of its proper divisors (11386645).

70144571 is an equidigital number, since it uses as much as digits as its factorization.

70144571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2822 (or 2761 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 70144571 is about 8375.2355787763. The cubic root of 70144571 is about 412.4120578979.

Adding to 70144571 its reverse (17544107), we get a palindrome (87688678).

The spelling of 70144571 in words is "seventy million, one hundred forty-four thousand, five hundred seventy-one".