71154648 has 48 divisors (see below), whose sum is σ = 193822200. Its totient is φ = 23581440.

The previous prime is 71154619. The next prime is 71154653. The reversal of 71154648 is 84645117.

It is a happy number.

71154648 is a `hidden beast` number, since 7 + 1 + 1 + 5 + 4 + 648 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10128 + ... + 15648.

Almost surely, 2^71154648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71154648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96911100).

71154648 is an abundant number, since it is smaller than the sum of its proper divisors (122667552).

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

71154648 is a wasteful number, since it uses less digits than its factorization.

71154648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5712 (or 5705 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 71154648 is about 8435.3214520847. The cubic root of 71154648 is about 414.3821997343.

The spelling of 71154648 in words is "seventy-one million, one hundred fifty-four thousand, six hundred forty-eight".