71342231 has 8 divisors (see below), whose sum is σ = 71870400. Its totient is φ = 70816608.

The previous prime is 71342197. The next prime is 71342237. The reversal of 71342231 is 13224317.

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

It is a cyclic number.

It is not a de Polignac number, because 71342231 - 2¹⁴ = 71325847 is a prime.

It is a super-2 number, since 2×71342231² = 10179427848114722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 71342197 and 71342206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71342237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127805 + ... + 128361.

It is an arithmetic number, because the mean of its divisors is an integer number (8983800).

Almost surely, 2^71342231 is an apocalyptic number.

71342231 is a deficient number, since it is larger than the sum of its proper divisors (528169).

71342231 is a wasteful number, since it uses less digits than its factorization.

71342231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273.

The product of its digits is 1008, while the sum is 23.

The square root of 71342231 is about 8446.4330341275. The cubic root of 71342231 is about 414.7460215950.

Adding to 71342231 its reverse (13224317), we get a palindrome (84566548).

The spelling of 71342231 in words is "seventy-one million, three hundred forty-two thousand, two hundred thirty-one".