71412012 has 54 divisors (see below), whose sum is σ = 209990508. Its totient is φ = 20402928.

The previous prime is 71411999. The next prime is 71412049. The reversal of 71412012 is 21021417.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18478 + ... + 22005.

Almost surely, 2^71412012 is an apocalyptic number.

It is an amenable number.

71412012 is an abundant number, since it is smaller than the sum of its proper divisors (138578496).

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

71412012 is a wasteful number, since it uses less digits than its factorization.

71412012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40507 (or 40495 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 71412012 is about 8450.5628214930. The cubic root of 71412012 is about 414.8812008142.

Adding to 71412012 its reverse (21021417), we get a palindrome (92433429).

The spelling of 71412012 in words is "seventy-one million, four hundred twelve thousand, twelve".