70144173 has 12 divisors (see below), whose sum is σ = 110530368. Its totient is φ = 42511560.

The previous prime is 70144169. The next prime is 70144187. The reversal of 70144173 is 37144107.

It is not a de Polignac number, because 70144173 - 2² = 70144169 is a prime.

It is a super-3 number, since 3×70144173³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70144673) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 354165 + ... + 354362.

It is an arithmetic number, because the mean of its divisors is an integer number (9210864).

Almost surely, 2^70144173 is an apocalyptic number.

It is an amenable number.

70144173 is a deficient number, since it is larger than the sum of its proper divisors (40386195).

70144173 is a wasteful number, since it uses less digits than its factorization.

70144173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708544 (or 708541 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 70144173 is about 8375.2118182169. The cubic root of 70144173 is about 412.4112778884.

The spelling of 70144173 in words is "seventy million, one hundred forty-four thousand, one hundred seventy-three".