71365042 has 16 divisors (see below), whose sum is σ = 123020352. Its totient is φ = 30414960.

The previous prime is 71365033. The next prime is 71365057. The reversal of 71365042 is 24056317.

It is a self number, because there is not a number n which added to its sum of digits gives 71365042.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11548 + ... + 16615.

It is an arithmetic number, because the mean of its divisors is an integer number (7688772).

Almost surely, 2^71365042 is an apocalyptic number.

71365042 is a deficient number, since it is larger than the sum of its proper divisors (51655310).

71365042 is a wasteful number, since it uses less digits than its factorization.

71365042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28353.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 71365042 is about 8447.7832595303. The cubic root of 71365042 is about 414.7902205836.

The spelling of 71365042 in words is "seventy-one million, three hundred sixty-five thousand, forty-two".