71214812 has 48 divisors (see below), whose sum is σ = 136980480. Its totient is φ = 32270400.

The previous prime is 71214809. The next prime is 71214817. The reversal of 71214812 is 21841217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71214817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393362 + ... + 393542.

It is an arithmetic number, because the mean of its divisors is an integer number (2853760).

Almost surely, 2^71214812 is an apocalyptic number.

It is an amenable number.

71214812 is a deficient number, since it is larger than the sum of its proper divisors (65765668).

71214812 is a wasteful number, since it uses less digits than its factorization.

71214812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402 (or 400 counting only the distinct ones).

The product of its digits is 896, while the sum is 26.

The square root of 71214812 is about 8438.8868934238. The cubic root of 71214812 is about 414.4989588779.

The spelling of 71214812 in words is "seventy-one million, two hundred fourteen thousand, eight hundred twelve".