71451352 has 32 divisors (see below), whose sum is σ = 153861120. Its totient is φ = 30471840.

The previous prime is 71451349. The next prime is 71451361. The reversal of 71451352 is 25315417.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 71451352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8793 + ... + 14839.

It is an arithmetic number, because the mean of its divisors is an integer number (4808160).

Almost surely, 2^71451352 is an apocalyptic number.

It is an amenable number.

71451352 is an abundant number, since it is smaller than the sum of its proper divisors (82409768).

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

71451352 is a wasteful number, since it uses less digits than its factorization.

71451352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6271 (or 6267 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 71451352 is about 8452.8901566269. The cubic root of 71451352 is about 414.9573711475.

Adding to 71451352 its reverse (25315417), we get a palindrome (96766769).

The spelling of 71451352 in words is "seventy-one million, four hundred fifty-one thousand, three hundred fifty-two".