71321150 has 48 divisors (see below), whose sum is σ = 138875040. Its totient is φ = 27216000.

The previous prime is 71321149. The next prime is 71321161. The reversal of 71321150 is 5112317.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146207 + ... + 146693.

It is an arithmetic number, because the mean of its divisors is an integer number (2893230).

Almost surely, 2^71321150 is an apocalyptic number.

71321150 is a deficient number, since it is larger than the sum of its proper divisors (67553890).

71321150 is a wasteful number, since it uses less digits than its factorization.

71321150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629 (or 624 counting only the distinct ones).

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

The square root of 71321150 is about 8445.1850186956. The cubic root of 71321150 is about 414.7051663069.

Adding to 71321150 its reverse (5112317), we get a palindrome (76433467).

The spelling of 71321150 in words is "seventy-one million, three hundred twenty-one thousand, one hundred fifty".