71214511 has 8 divisors (see below), whose sum is σ = 72540000. Its totient is φ = 69894240.

The previous prime is 71214487. The next prime is 71214551. The reversal of 71214511 is 11541217.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71214511 - 2⁷ = 71214383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71214551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35565 + ... + 37513.

It is an arithmetic number, because the mean of its divisors is an integer number (9067500).

Almost surely, 2^71214511 is an apocalyptic number.

71214511 is a deficient number, since it is larger than the sum of its proper divisors (1325489).

71214511 is a wasteful number, since it uses less digits than its factorization.

71214511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609.

The product of its digits is 280, while the sum is 22.

The square root of 71214511 is about 8438.8690592994. The cubic root of 71214511 is about 414.4983748966.

Adding to 71214511 its reverse (11541217), we get a palindrome (82755728).

The spelling of 71214511 in words is "seventy-one million, two hundred fourteen thousand, five hundred eleven".