71040619 has 4 divisors (see below), whose sum is σ = 76505296. Its totient is φ = 65575944.

The previous prime is 71040589. The next prime is 71040653. The reversal of 71040619 is 91604017.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 71040619 - 2¹¹ = 71038571 is a prime.

It is a super-2 number, since 2×71040619² = 10093539095806322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71040679) 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, 2732319 + ... + 2732344.

It is an arithmetic number, because the mean of its divisors is an integer number (19126324).

Almost surely, 2^71040619 is an apocalyptic number.

71040619 is a deficient number, since it is larger than the sum of its proper divisors (5464677).

71040619 is a wasteful number, since it uses less digits than its factorization.

71040619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5464676.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 71040619 is about 8428.5597227522. The cubic root of 71040619 is about 414.1607250885.

The spelling of 71040619 in words is "seventy-one million, forty thousand, six hundred nineteen".