71161265 has 8 divisors (see below), whose sum is σ = 97592640. Its totient is φ = 48796272.

The previous prime is 71161247. The next prime is 71161291. The reversal of 71161265 is 56216117.

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

It is not a de Polignac number, because 71161265 - 2⁸ = 71161009 is a prime.

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, 1016555 + ... + 1016624.

It is an arithmetic number, because the mean of its divisors is an integer number (12199080).

Almost surely, 2^71161265 is an apocalyptic number.

It is an amenable number.

71161265 is a deficient number, since it is larger than the sum of its proper divisors (26431375).

71161265 is a wasteful number, since it uses less digits than its factorization.

71161265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2033191.

The product of its digits is 2520, while the sum is 29.

The square root of 71161265 is about 8435.7136627555. The cubic root of 71161265 is about 414.3950444423.

The spelling of 71161265 in words is "seventy-one million, one hundred sixty-one thousand, two hundred sixty-five".