70144172 has 24 divisors (see below), whose sum is σ = 140483616. Its totient is φ = 30019968.

The previous prime is 70144169. The next prime is 70144187. The reversal of 70144172 is 27144107.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 27128 + ... + 29600.

It is an arithmetic number, because the mean of its divisors is an integer number (5853484).

Almost surely, 2^70144172 is an apocalyptic number.

It is an amenable number.

70144172 is an abundant number, since it is smaller than the sum of its proper divisors (70339444).

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

70144172 is a wasteful number, since it uses less digits than its factorization.

70144172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3497 (or 3495 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 70144172 is about 8375.2117585169. The cubic root of 70144172 is about 412.4112759285.

Adding to 70144172 its reverse (27144107), we get a palindrome (97288279).

The spelling of 70144172 in words is "seventy million, one hundred forty-four thousand, one hundred seventy-two".