71036242 has 4 divisors (see below), whose sum is σ = 106554366. Its totient is φ = 35518120.

The previous prime is 71036233. The next prime is 71036243. The reversal of 71036242 is 24263017.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24263017 = 3413 ⋅7109.

It can be written as a sum of positive squares in only one way, i.e., 64979721 + 6056521 = 8061^2 + 2461^2 .

It is a super-2 number, since 2×71036242² = 10092295354965128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71036243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17759059 + ... + 17759062.

Almost surely, 2^71036242 is an apocalyptic number.

71036242 is a deficient number, since it is larger than the sum of its proper divisors (35518124).

71036242 is a wasteful number, since it uses less digits than its factorization.

71036242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35518123.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 71036242 is about 8428.3000658496. The cubic root of 71036242 is about 414.1522190688.

Adding to 71036242 its reverse (24263017), we get a palindrome (95299259).

The spelling of 71036242 in words is "seventy-one million, thirty-six thousand, two hundred forty-two".