71253215 has 8 divisors (see below), whose sum is σ = 93277008. Its totient is φ = 51820480.

The previous prime is 71253209. The next prime is 71253229. The reversal of 71253215 is 51235217.

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

It is not a de Polignac number, because 71253215 - 2⁴ = 71253199 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647702 + ... + 647811.

It is an arithmetic number, because the mean of its divisors is an integer number (11659626).

Almost surely, 2^71253215 is an apocalyptic number.

71253215 is a deficient number, since it is larger than the sum of its proper divisors (22023793).

71253215 is a wasteful number, since it uses less digits than its factorization.

71253215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295529.

The product of its digits is 2100, while the sum is 26.

The square root of 71253215 is about 8441.1619460830. The cubic root of 71253215 is about 414.5734524775.

The spelling of 71253215 in words is "seventy-one million, two hundred fifty-three thousand, two hundred fifteen".