71517452 has 6 divisors (see below), whose sum is σ = 125155548. Its totient is φ = 35758724.

The previous prime is 71517449. The next prime is 71517461. The reversal of 71517452 is 25471517.

It is a super-2 number, since 2×71517452² = 10229491881144608, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8939678 + ... + 8939685.

It is an arithmetic number, because the mean of its divisors is an integer number (20859258).

Almost surely, 2^71517452 is an apocalyptic number.

It is an amenable number.

71517452 is a deficient number, since it is larger than the sum of its proper divisors (53638096).

71517452 is a wasteful number, since it uses less digits than its factorization.

71517452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17879367 (or 17879365 counting only the distinct ones).

The product of its digits is 9800, while the sum is 32.

The square root of 71517452 is about 8456.7991580739. The cubic root of 71517452 is about 415.0852914162.

Adding to 71517452 its reverse (25471517), we get a palindrome (96988969).

The spelling of 71517452 in words is "seventy-one million, five hundred seventeen thousand, four hundred fifty-two".