71151150 has 48 divisors (see below), whose sum is σ = 201665664. Its totient is φ = 16262880.

The previous prime is 71151133. The next prime is 71151151. The reversal of 71151150 is 5115117.

It is a happy number.

It is a super-2 number, since 2×71151150² = 10124972292645000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71151151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32832 + ... + 34931.

It is an arithmetic number, because the mean of its divisors is an integer number (4201368).

Almost surely, 2^71151150 is an apocalyptic number.

71151150 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71151150 is an abundant number, since it is smaller than the sum of its proper divisors (130514514).

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

71151150 is a wasteful number, since it uses less digits than its factorization.

71151150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67785 (or 67780 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 21.

The square root of 71151150 is about 8435.1141071120. The cubic root of 71151150 is about 414.3754092073.

Adding to 71151150 its reverse (5115117), we get a palindrome (76266267).

The spelling of 71151150 in words is "seventy-one million, one hundred fifty-one thousand, one hundred fifty".