271420091 has 4 divisors (see below), whose sum is σ = 272038800. Its totient is φ = 270801384.

The previous prime is 271420057. The next prime is 271420109. The reversal of 271420091 is 190024172.

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 271420091 - 2¹⁸ = 271157947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 271420091.

It is not an unprimeable number, because it can be changed into a prime (271420031) 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, 308696 + ... + 309573.

It is an arithmetic number, because the mean of its divisors is an integer number (68009700).

Almost surely, 2^271420091 is an apocalyptic number.

271420091 is a deficient number, since it is larger than the sum of its proper divisors (618709).

271420091 is an equidigital number, since it uses as much as digits as its factorization.

271420091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618708.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 271420091 is about 16474.8320477023. The cubic root of 271420091 is about 647.4615718363.

The spelling of 271420091 in words is "two hundred seventy-one million, four hundred twenty thousand, ninety-one".