71165442 has 16 divisors (see below), whose sum is σ = 142564032. Its totient is φ = 23682960.

The previous prime is 71165441. The next prime is 71165459. The reversal of 71165442 is 24456117.

It is not an unprimeable number, because it can be changed into a prime (71165441) 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, 5613 + ... + 13184.

It is an arithmetic number, because the mean of its divisors is an integer number (8910252).

Almost surely, 2^71165442 is an apocalyptic number.

71165442 is an abundant number, since it is smaller than the sum of its proper divisors (71398590).

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

71165442 is a wasteful number, since it uses less digits than its factorization.

71165442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19433.

The product of its digits is 6720, while the sum is 30.

The square root of 71165442 is about 8435.9612374643. The cubic root of 71165442 is about 414.4031522906.

The spelling of 71165442 in words is "seventy-one million, one hundred sixty-five thousand, four hundred forty-two".