71214641 has 4 divisors (see below), whose sum is σ = 74962800. Its totient is φ = 67466484.

The previous prime is 71214623. The next prime is 71214653. The reversal of 71214641 is 14641217.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14641217 = 3643 ⋅4019.

It is a cyclic number.

It is not a de Polignac number, because 71214641 - 2²² = 67020337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71214641.

It is not an unprimeable number, because it can be changed into a prime (71214041) 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, 1874051 + ... + 1874088.

It is an arithmetic number, because the mean of its divisors is an integer number (18740700).

Almost surely, 2^71214641 is an apocalyptic number.

It is an amenable number.

71214641 is a deficient number, since it is larger than the sum of its proper divisors (3748159).

71214641 is a wasteful number, since it uses less digits than its factorization.

71214641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748158.

The product of its digits is 1344, while the sum is 26.

The square root of 71214641 is about 8438.8767617498. The cubic root of 71214641 is about 414.4986271146.

Adding to 71214641 its reverse (14641217), we get a palindrome (85855858).

The spelling of 71214641 in words is "seventy-one million, two hundred fourteen thousand, six hundred forty-one".