71142346 has 16 divisors (see below), whose sum is σ = 122542560. Its totient is φ = 30635280.

The previous prime is 71142311. The next prime is 71142347. The reversal of 71142346 is 64324117.

It is a super-2 number, since 2×71142346² = 10122466788767432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (71142347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84681 + ... + 85516.

It is an arithmetic number, because the mean of its divisors is an integer number (7658910).

Almost surely, 2^71142346 is an apocalyptic number.

71142346 is a deficient number, since it is larger than the sum of its proper divisors (51400214).

71142346 is a wasteful number, since it uses less digits than its factorization.

71142346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170229.

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

The square root of 71142346 is about 8434.5922248796. The cubic root of 71142346 is about 414.3583173702.

The spelling of 71142346 in words is "seventy-one million, one hundred forty-two thousand, three hundred forty-six".