71422 has 16 divisors (see below), whose sum is σ = 119952. Its totient is φ = 31680.

The previous prime is 71419. The next prime is 71429. The reversal of 71422 is 22417.

It is a super-2 number, since 2×71422² = 10202204168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 71396 and 71405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1033 + ... + 1099.

It is an arithmetic number, because the mean of its divisors is an integer number (7497).

2⁷¹⁴²² is an apocalyptic number.

71422 is the 134-th decagonal number.

71422 is a deficient number, since it is larger than the sum of its proper divisors (48530).

71422 is a wasteful number, since it uses less digits than its factorization.

71422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123.

The product of its digits is 112, while the sum is 16.

The square root of 71422 is about 267.2489476125. The cubic root of 71422 is about 41.4900542286.

Adding to 71422 its reverse (22417), we get a palindrome (93839).

The spelling of 71422 in words is "seventy-one thousand, four hundred twenty-two", and thus it is an iban number.