71142463 has 12 divisors (see below), whose sum is σ = 82954152. Its totient is φ = 60834480.

The previous prime is 71142437. The next prime is 71142493. The reversal of 71142463 is 36424117.

It is not a de Polignac number, because 71142463 - 2⁵ = 71142431 is a prime.

It is a super-2 number, since 2×71142463² = 10122500083412738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71142493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22581 + ... + 25537.

It is an arithmetic number, because the mean of its divisors is an integer number (6912846).

Almost surely, 2^71142463 is an apocalyptic number.

71142463 is a deficient number, since it is larger than the sum of its proper divisors (11811689).

71142463 is a wasteful number, since it uses less digits than its factorization.

71142463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3462 (or 3455 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 71142463 is about 8434.5991606003. The cubic root of 71142463 is about 414.3585445200.

The spelling of 71142463 in words is "seventy-one million, one hundred forty-two thousand, four hundred sixty-three".