71032042 has 4 divisors (see below), whose sum is σ = 106548066. Its totient is φ = 35516020.

The previous prime is 71032037. The next prime is 71032043. The reversal of 71032042 is 24023017.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24023017 = 23 ⋅1044479.

It can be written as a sum of positive squares in only one way, i.e., 69906321 + 1125721 = 8361^2 + 1061^2 .

It is not an unprimeable number, because it can be changed into a prime (71032043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17758009 + ... + 17758012.

Almost surely, 2^71032042 is an apocalyptic number.

71032042 is a deficient number, since it is larger than the sum of its proper divisors (35516024).

71032042 is a wasteful number, since it uses less digits than its factorization.

71032042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35516023.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 71032042 is about 8428.0509016023. The cubic root of 71032042 is about 414.1440566925.

Adding to 71032042 its reverse (24023017), we get a palindrome (95055059).

The spelling of 71032042 in words is "seventy-one million, thirty-two thousand, forty-two".