142971371 has 8 divisors (see below), whose sum is σ = 151264080. Its totient is φ = 134755488.

The previous prime is 142971359. The next prime is 142971379. The reversal of 142971371 is 173179241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142971371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142971379) 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 7 ways as a sum of consecutive naturals, for example, 15356 + ... + 22841.

It is an arithmetic number, because the mean of its divisors is an integer number (18908010).

Almost surely, 2^142971371 is an apocalyptic number.

142971371 is a deficient number, since it is larger than the sum of its proper divisors (8292709).

142971371 is a wasteful number, since it uses less digits than its factorization.

142971371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38413.

The product of its digits is 10584, while the sum is 35.

The square root of 142971371 is about 11957.0636445576. The cubic root of 142971371 is about 522.8972533532.

The spelling of 142971371 in words is "one hundred forty-two million, nine hundred seventy-one thousand, three hundred seventy-one".