71214645 has 16 divisors (see below), whose sum is σ = 114629760. Its totient is φ = 37752384.

The previous prime is 71214623. The next prime is 71214653. The reversal of 71214645 is 54641217.

It is not a de Polignac number, because 71214645 - 2⁹ = 71214133 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11710 + ... + 16719.

It is an arithmetic number, because the mean of its divisors is an integer number (7164360).

Almost surely, 2^71214645 is an apocalyptic number.

It is an amenable number.

71214645 is a deficient number, since it is larger than the sum of its proper divisors (43415115).

71214645 is a wasteful number, since it uses less digits than its factorization.

71214645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28604.

The product of its digits is 6720, while the sum is 30.

The square root of 71214645 is about 8438.8769987481. The cubic root of 71214645 is about 414.4986348752.

The spelling of 71214645 in words is "seventy-one million, two hundred fourteen thousand, six hundred forty-five".