71345232 has 80 divisors (see below), whose sum is σ = 234052480. Its totient is φ = 20383488.

The previous prime is 71345227. The next prime is 71345237. The reversal of 71345232 is 23254317.

71345232 is a `hidden beast` number, since 7 + 134 + 523 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (71345227) and next prime (71345237).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 71345196 and 71345205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71345237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8773 + ... + 14820.

It is an arithmetic number, because the mean of its divisors is an integer number (2925656).

Almost surely, 2^71345232 is an apocalyptic number.

71345232 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

71345232 is an abundant number, since it is smaller than the sum of its proper divisors (162707248).

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

71345232 is a wasteful number, since it uses less digits than its factorization.

71345232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23617 (or 23605 counting only the distinct ones).

The product of its digits is 5040, while the sum is 27.

The square root of 71345232 is about 8446.6106812141. The cubic root of 71345232 is about 414.7518369228.

Adding to 71345232 its reverse (23254317), we get a palindrome (94599549).

The spelling of 71345232 in words is "seventy-one million, three hundred forty-five thousand, two hundred thirty-two".