71213267 has 4 divisors (see below), whose sum is σ = 74309520. Its totient is φ = 68117016.

The previous prime is 71213257. The next prime is 71213279. The reversal of 71213267 is 76231217.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76231217 = 43 ⋅1772819.

It is a cyclic number.

It is not a de Polignac number, because 71213267 - 2⁴ = 71213251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71213227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1548092 + ... + 1548137.

It is an arithmetic number, because the mean of its divisors is an integer number (18577380).

Almost surely, 2^71213267 is an apocalyptic number.

71213267 is a deficient number, since it is larger than the sum of its proper divisors (3096253).

71213267 is a wasteful number, since it uses less digits than its factorization.

71213267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3096252.

The product of its digits is 3528, while the sum is 29.

The square root of 71213267 is about 8438.7953524185. The cubic root of 71213267 is about 414.4959613483.

The spelling of 71213267 in words is "seventy-one million, two hundred thirteen thousand, two hundred sixty-seven".