142175671 has 4 divisors (see below), whose sum is σ = 155100744. Its totient is φ = 129250600.

The previous prime is 142175669. The next prime is 142175699. The reversal of 142175671 is 176571241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142175671 - 2¹ = 142175669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142175171) 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 3 ways as a sum of consecutive naturals, for example, 6462520 + ... + 6462541.

It is an arithmetic number, because the mean of its divisors is an integer number (38775186).

Almost surely, 2^142175671 is an apocalyptic number.

142175671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142175671 is a deficient number, since it is larger than the sum of its proper divisors (12925073).

142175671 is a wasteful number, since it uses less digits than its factorization.

142175671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12925072.

The product of its digits is 11760, while the sum is 34.

The square root of 142175671 is about 11923.7440009420. The cubic root of 142175671 is about 521.9253953557.

The spelling of 142175671 in words is "one hundred forty-two million, one hundred seventy-five thousand, six hundred seventy-one".