71151500 has 96 divisors (see below), whose sum is σ = 183980160. Its totient is φ = 23520000.

The previous prime is 71151497. The next prime is 71151503. The reversal of 71151500 is 515117.

It is an interprime number because it is at equal distance from previous prime (71151497) and next prime (71151503).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (71151503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101150 + ... + 101850.

It is an arithmetic number, because the mean of its divisors is an integer number (1916460).

Almost surely, 2^71151500 is an apocalyptic number.

71151500 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71151500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91990080).

71151500 is an abundant number, since it is smaller than the sum of its proper divisors (112828660).

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

71151500 is a wasteful number, since it uses less digits than its factorization.

71151500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 20.

The square root of 71151500 is about 8435.1348536938. The cubic root of 71151500 is about 414.3760886582.

Adding to 71151500 its reverse (515117), we get a palindrome (71666617).

The spelling of 71151500 in words is "seventy-one million, one hundred fifty-one thousand, five hundred".