71142700 has 18 divisors (see below), whose sum is σ = 154379876. Its totient is φ = 28457040.

The previous prime is 71142697. The next prime is 71142719. The reversal of 71142700 is 724117.

It is a super-2 number, since 2×71142700² = 10122567526580000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 355614 + ... + 355813.

Almost surely, 2^71142700 is an apocalyptic number.

It is an amenable number.

71142700 is an abundant number, since it is smaller than the sum of its proper divisors (83237176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71142700 is a wasteful number, since it uses less digits than its factorization.

71142700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711441 (or 711434 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 71142700 is about 8434.6132098633. The cubic root of 71142700 is about 414.3590046430.

Adding to 71142700 its reverse (724117), we get a palindrome (71866817).

The spelling of 71142700 in words is "seventy-one million, one hundred forty-two thousand, seven hundred".