91271465 has 8 divisors (see below), whose sum is σ = 110912640. Its totient is φ = 72092592.

The previous prime is 91271449. The next prime is 91271473. The reversal of 91271465 is 56417219.

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 91271465 - 2⁴ = 91271449 is a prime.

It is a Curzon 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, 115139 + ... + 115928.

It is an arithmetic number, because the mean of its divisors is an integer number (13864080).

Almost surely, 2^91271465 is an apocalyptic number.

It is an amenable number.

91271465 is a deficient number, since it is larger than the sum of its proper divisors (19641175).

91271465 is a wasteful number, since it uses less digits than its factorization.

91271465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231151.

The product of its digits is 15120, while the sum is 35.

The square root of 91271465 is about 9553.6100506562. The cubic root of 91271465 is about 450.2409655951.

The spelling of 91271465 in words is "ninety-one million, two hundred seventy-one thousand, four hundred sixty-five".