64142173 has 8 divisors (see below), whose sum is σ = 68126400. Its totient is φ = 60181440.

The previous prime is 64142153. The next prime is 64142179. The reversal of 64142173 is 37124146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64142173 - 2²¹ = 62045021 is a prime.

It is a super-2 number, since 2×64142173² = 8228436714323858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64142179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73 + ... + 11326.

It is an arithmetic number, because the mean of its divisors is an integer number (8515800).

Almost surely, 2^64142173 is an apocalyptic number.

It is an amenable number.

64142173 is a deficient number, since it is larger than the sum of its proper divisors (3984227).

64142173 is a wasteful number, since it uses less digits than its factorization.

64142173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11747.

The product of its digits is 4032, while the sum is 28.

The square root of 64142173 is about 8008.8808831197. The cubic root of 64142173 is about 400.2959746934.

The spelling of 64142173 in words is "sixty-four million, one hundred forty-two thousand, one hundred seventy-three".