71052042 has 16 divisors (see below), whose sum is σ = 143190432. Its totient is φ = 23502960.

The previous prime is 71052029. The next prime is 71052049. The reversal of 71052042 is 24025017.

It is not an unprimeable number, because it can be changed into a prime (71052049) by changing a digit.

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, 44413 + ... + 45984.

It is an arithmetic number, because the mean of its divisors is an integer number (8949402).

Almost surely, 2^71052042 is an apocalyptic number.

71052042 is an abundant number, since it is smaller than the sum of its proper divisors (72138390).

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

71052042 is a wasteful number, since it uses less digits than its factorization.

71052042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90533.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 71052042 is about 8429.2373320485. The cubic root of 71052042 is about 414.1829222694.

Adding to 71052042 its reverse (24025017), we get a palindrome (95077059).

The spelling of 71052042 in words is "seventy-one million, fifty-two thousand, forty-two".