71252242 has 8 divisors (see below), whose sum is σ = 112503600. Its totient is φ = 33751044.

The previous prime is 71252239. The next prime is 71252249. The reversal of 71252242 is 24225217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (71252249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 937492 + ... + 937567.

It is an arithmetic number, because the mean of its divisors is an integer number (14062950).

Almost surely, 2^71252242 is an apocalyptic number.

71252242 is a deficient number, since it is larger than the sum of its proper divisors (41251358).

71252242 is a wasteful number, since it uses less digits than its factorization.

71252242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875080.

The product of its digits is 2240, while the sum is 25.

The square root of 71252242 is about 8441.1043116407. The cubic root of 71252242 is about 414.5715653964.

Adding to 71252242 its reverse (24225217), we get a palindrome (95477459).

The spelling of 71252242 in words is "seventy-one million, two hundred fifty-two thousand, two hundred forty-two".