71441213 has 4 divisors (see below), whose sum is σ = 71756160. Its totient is φ = 71126268.

The previous prime is 71441203. The next prime is 71441219. The reversal of 71441213 is 31214417.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 71441213 - 2¹⁰ = 71440189 is a prime.

It is a super-2 number, since 2×71441213² = 10207693829822738, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71441219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157133 + ... + 157586.

It is an arithmetic number, because the mean of its divisors is an integer number (17939040).

Almost surely, 2^71441213 is an apocalyptic number.

It is an amenable number.

71441213 is a deficient number, since it is larger than the sum of its proper divisors (314947).

71441213 is a wasteful number, since it uses less digits than its factorization.

71441213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314946.

The product of its digits is 672, while the sum is 23.

The square root of 71441213 is about 8452.2903996491. The cubic root of 71441213 is about 414.9377426325.

The spelling of 71441213 in words is "seventy-one million, four hundred forty-one thousand, two hundred thirteen".