71113250 has 32 divisors (see below), whose sum is σ = 143370864. Its totient is φ = 26256000.

The previous prime is 71113243. The next prime is 71113253. The reversal of 71113250 is 5231117.

It can be written as a sum of positive squares in 8 ways, for example, as 9066121 + 62047129 = 3011^2 + 7877^2 .

It is not an unprimeable number, because it can be changed into a prime (71113253) 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 15 ways as a sum of consecutive naturals, for example, 7691 + ... + 14190.

Almost surely, 2^71113250 is an apocalyptic number.

71113250 is an abundant number, since it is smaller than the sum of its proper divisors (72257614).

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

71113250 is a wasteful number, since it uses less digits than its factorization.

71113250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21911 (or 21901 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 71113250 is about 8432.8672466724. The cubic root of 71113250 is about 414.3018211845.

Adding to 71113250 its reverse (5231117), we get a palindrome (76344367).

The spelling of 71113250 in words is "seventy-one million, one hundred thirteen thousand, two hundred fifty".