71117152 has 24 divisors (see below), whose sum is σ = 147382200. Its totient is φ = 33686784.

The previous prime is 71117129. The next prime is 71117177. The reversal of 71117152 is 25171117.

It is a super-2 number, since 2×71117152² = 10115298617182208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57877 + ... + 59092.

It is an arithmetic number, because the mean of its divisors is an integer number (6140925).

Almost surely, 2^71117152 is an apocalyptic number.

It is an amenable number.

71117152 is an abundant number, since it is smaller than the sum of its proper divisors (76265048).

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

71117152 is a wasteful number, since it uses less digits than its factorization.

71117152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116998 (or 116990 counting only the distinct ones).

The product of its digits is 490, while the sum is 25.

The square root of 71117152 is about 8433.0986001588. The cubic root of 71117152 is about 414.3093986573.

Adding to 71117152 its reverse (25171117), we get a palindrome (96288269).

The spelling of 71117152 in words is "seventy-one million, one hundred seventeen thousand, one hundred fifty-two".