71861150 has 12 divisors (see below), whose sum is σ = 133661832. Its totient is φ = 28744440.

The previous prime is 71861149. The next prime is 71861191. The reversal of 71861150 is 5116817.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 718562 + ... + 718661.

It is an arithmetic number, because the mean of its divisors is an integer number (11138486).

Almost surely, 2^71861150 is an apocalyptic number.

71861150 is a deficient number, since it is larger than the sum of its proper divisors (61800682).

71861150 is a wasteful number, since it uses less digits than its factorization.

71861150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437235 (or 1437230 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 71861150 is about 8477.0956111159. The cubic root of 71861150 is about 415.7491669268.

Adding to 71861150 its reverse (5116817), we get a palindrome (76977967).

The spelling of 71861150 in words is "seventy-one million, eight hundred sixty-one thousand, one hundred fifty".