71422132 has 12 divisors (see below), whose sum is σ = 125048196. Its totient is φ = 35694080.

The previous prime is 71422103. The next prime is 71422147. The reversal of 71422132 is 23122417.

It can be written as a sum of positive squares in 2 ways, for example, as 66520336 + 4901796 = 8156^2 + 2214^2 .

It is a super-2 number, since 2×71422132² = 10202241878850848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12948 + ... + 17620.

It is an arithmetic number, because the mean of its divisors is an integer number (10420683).

Almost surely, 2^71422132 is an apocalyptic number.

It is an amenable number.

71422132 is a deficient number, since it is larger than the sum of its proper divisors (53626064).

71422132 is a wasteful number, since it uses less digits than its factorization.

71422132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8498 (or 8496 counting only the distinct ones).

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

The square root of 71422132 is about 8451.1615769668. The cubic root of 71422132 is about 414.9007978881.

Adding to 71422132 its reverse (23122417), we get a palindrome (94544549).

The spelling of 71422132 in words is "seventy-one million, four hundred twenty-two thousand, one hundred thirty-two".