71112250 has 64 divisors (see below), whose sum is σ = 152979840. Its totient is φ = 24480000.

The previous prime is 71112211. The next prime is 71112281. The reversal of 71112250 is 5221117.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 51570 + ... + 52930.

It is an arithmetic number, because the mean of its divisors is an integer number (2390310).

Almost surely, 2^71112250 is an apocalyptic number.

71112250 is an abundant number, since it is smaller than the sum of its proper divisors (81867590).

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

71112250 is a wasteful number, since it uses less digits than its factorization.

71112250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408 (or 1398 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 71112250 is about 8432.8079546495. The cubic root of 71112250 is about 414.2998791941.

Adding to 71112250 its reverse (5221117), we get a palindrome (76333367).

The spelling of 71112250 in words is "seventy-one million, one hundred twelve thousand, two hundred fifty".