238142973 has 8 divisors (see below), whose sum is σ = 318082336. Its totient is φ = 158482800.

The previous prime is 238142959. The next prime is 238142981. The reversal of 238142973 is 379241832.

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

It is not a de Polignac number, because 238142973 - 2⁶ = 238142909 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238142923) 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, 67798 + ... + 71223.

It is an arithmetic number, because the mean of its divisors is an integer number (39760292).

Almost surely, 2^238142973 is an apocalyptic number.

It is an amenable number.

238142973 is a deficient number, since it is larger than the sum of its proper divisors (79939363).

238142973 is a wasteful number, since it uses less digits than its factorization.

238142973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139595.

The product of its digits is 72576, while the sum is 39.

The square root of 238142973 is about 15431.8817063895. The cubic root of 238142973 is about 619.8395118775.

It can be divided in two parts, 2381 and 42973, that added together give a palindrome (45354).

The spelling of 238142973 in words is "two hundred thirty-eight million, one hundred forty-two thousand, nine hundred seventy-three".