71309150 has 48 divisors (see below), whose sum is σ = 145504080. Its totient is φ = 25785600.

The previous prime is 71309149. The next prime is 71309159. The reversal of 71309150 is 5190317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71309159) 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 23 ways as a sum of consecutive naturals, for example, 174146 + ... + 174554.

It is an arithmetic number, because the mean of its divisors is an integer number (3031335).

Almost surely, 2^71309150 is an apocalyptic number.

71309150 is an abundant number, since it is smaller than the sum of its proper divisors (74194930).

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

71309150 is a wasteful number, since it uses less digits than its factorization.

71309150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 71309150 is about 8444.4745248002. The cubic root of 71309150 is about 414.6819065346.

Adding to 71309150 its reverse (5190317), we get a palindrome (76499467).

The spelling of 71309150 in words is "seventy-one million, three hundred nine thousand, one hundred fifty".