271640001 has 4 divisors (see below), whose sum is σ = 362186672. Its totient is φ = 181093332.

The previous prime is 271639997. The next prime is 271640003. The reversal of 271640001 is 100046172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 271640001 - 2² = 271639997 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 271640001.

It is not an unprimeable number, because it can be changed into a prime (271640003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45273331 + ... + 45273336.

It is an arithmetic number, because the mean of its divisors is an integer number (90546668).

Almost surely, 2^271640001 is an apocalyptic number.

It is an amenable number.

271640001 is a deficient number, since it is larger than the sum of its proper divisors (90546671).

271640001 is an equidigital number, since it uses as much as digits as its factorization.

271640001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90546670.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 271640001 is about 16481.5048160051. The cubic root of 271640001 is about 647.6363867478.

Adding to 271640001 its reverse (100046172), we get a palindrome (371686173).

The spelling of 271640001 in words is "two hundred seventy-one million, six hundred forty thousand, one".