71527412 has 24 divisors (see below), whose sum is σ = 137968320. Its totient is φ = 32175360.

The previous prime is 71527403. The next prime is 71527451. The reversal of 71527412 is 21472517.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4112 + ... + 12647.

It is an arithmetic number, because the mean of its divisors is an integer number (5748680).

Almost surely, 2^71527412 is an apocalyptic number.

It is an amenable number.

71527412 is a deficient number, since it is larger than the sum of its proper divisors (66440908).

71527412 is a wasteful number, since it uses less digits than its factorization.

71527412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16871 (or 16869 counting only the distinct ones).

The product of its digits is 3920, while the sum is 29.

The square root of 71527412 is about 8457.3880128560. The cubic root of 71527412 is about 415.1045597089.

Adding to 71527412 its reverse (21472517), we get a palindrome (92999929).

The spelling of 71527412 in words is "seventy-one million, five hundred twenty-seven thousand, four hundred twelve".