71232142 has 12 divisors (see below), whose sum is σ = 113504040. Its totient is φ = 33520736.

The previous prime is 71232137. The next prime is 71232143. The reversal of 71232142 is 24123217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71232143) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61042 + ... + 62197.

It is an arithmetic number, because the mean of its divisors is an integer number (9458670).

Almost surely, 2^71232142 is an apocalyptic number.

71232142 is a deficient number, since it is larger than the sum of its proper divisors (42271898).

71232142 is a wasteful number, since it uses less digits than its factorization.

71232142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123275 (or 123258 counting only the distinct ones).

The product of its digits is 672, while the sum is 22.

The square root of 71232142 is about 8439.9136251504. The cubic root of 71232142 is about 414.5325786833.

Adding to 71232142 its reverse (24123217), we get a palindrome (95355359).

The spelling of 71232142 in words is "seventy-one million, two hundred thirty-two thousand, one hundred forty-two".