71142268 has 24 divisors (see below), whose sum is σ = 128241792. Its totient is φ = 34507584.

The previous prime is 71142217. The next prime is 71142283. The reversal of 71142268 is 86224117.

It is a super-2 number, since 2×71142268² = 10122444592367648, 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 7 ways as a sum of consecutive naturals, for example, 82005 + ... + 82867.

It is an arithmetic number, because the mean of its divisors is an integer number (5343408).

Almost surely, 2^71142268 is an apocalyptic number.

It is an amenable number.

71142268 is a deficient number, since it is larger than the sum of its proper divisors (57099524).

71142268 is a wasteful number, since it uses less digits than its factorization.

71142268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461 (or 1459 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 71142268 is about 8434.5876010627. The cubic root of 71142268 is about 414.3581659369.

The spelling of 71142268 in words is "seventy-one million, one hundred forty-two thousand, two hundred sixty-eight".