71301042 has 24 divisors (see below), whose sum is σ = 155907180. Its totient is φ = 23548320.

The previous prime is 71301031. The next prime is 71301047. The reversal of 71301042 is 24010317.

It can be written as a sum of positive squares in 2 ways, for example, as 66928761 + 4372281 = 8181^2 + 2091^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (71301047) 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, 16209 + ... + 20132.

Almost surely, 2^71301042 is an apocalyptic number.

71301042 is an abundant number, since it is smaller than the sum of its proper divisors (84606138).

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

71301042 is a wasteful number, since it uses less digits than its factorization.

71301042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36458 (or 36455 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 71301042 is about 8443.9944339157. The cubic root of 71301042 is about 414.6661892046. Note that the first 3 decimals are identical.

Adding to 71301042 its reverse (24010317), we get a palindrome (95311359).

The spelling of 71301042 in words is "seventy-one million, three hundred one thousand, forty-two".