71545152 has 56 divisors (see below), whose sum is σ = 216342976. Its totient is φ = 20441088.

The previous prime is 71545141. The next prime is 71545153. The reversal of 71545152 is 25154517.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71545153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25273 + ... + 27960.

Almost surely, 2^71545152 is an apocalyptic number.

It is an amenable number.

71545152 is an abundant number, since it is smaller than the sum of its proper divisors (144797824).

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

71545152 is a wasteful number, since it uses less digits than its factorization.

71545152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53255 (or 53245 counting only the distinct ones).

The product of its digits is 7000, while the sum is 30.

The square root of 71545152 is about 8458.4367350002. The cubic root of 71545152 is about 415.1388745074.

Adding to 71545152 its reverse (25154517), we get a palindrome (96699669).

It can be divided in two parts, 7154515 and 2, that added together give a palindrome (7154517).

The spelling of 71545152 in words is "seventy-one million, five hundred forty-five thousand, one hundred fifty-two".