1027402271 has 4 divisors (see below), whose sum is σ = 1174174032. Its totient is φ = 880630512.

The previous prime is 1027402267. The next prime is 1027402283. The reversal of 1027402271 is 1722047201.

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 1027402271 - 2² = 1027402267 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 1027402271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027402241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73385870 + ... + 73385883.

It is an arithmetic number, because the mean of its divisors is an integer number (293543508).

Almost surely, 2^1027402271 is an apocalyptic number.

1027402271 is a deficient number, since it is larger than the sum of its proper divisors (146771761).

1027402271 is an equidigital number, since it uses as much as digits as its factorization.

1027402271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146771760.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 1027402271 is about 32053.1164007496. The cubic root of 1027402271 is about 1009.0519061006.

Adding to 1027402271 its reverse (1722047201), we get a palindrome (2749449472).

The spelling of 1027402271 in words is "one billion, twenty-seven million, four hundred two thousand, two hundred seventy-one".