71485152 has 24 divisors (see below), whose sum is σ = 187648776. Its totient is φ = 23828352.

The previous prime is 71485151. The next prime is 71485159. The reversal of 71485152 is 25158417.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×71485152² = 10220253912926208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71485151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372223 + ... + 372414.

It is an arithmetic number, because the mean of its divisors is an integer number (7818699).

Almost surely, 2^71485152 is an apocalyptic number.

It is an amenable number.

71485152 is an abundant number, since it is smaller than the sum of its proper divisors (116163624).

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

71485152 is a wasteful number, since it uses less digits than its factorization.

71485152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744650 (or 744642 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The square root of 71485152 is about 8454.8892364123. The cubic root of 71485152 is about 415.0227925741.

The spelling of 71485152 in words is "seventy-one million, four hundred eighty-five thousand, one hundred fifty-two".