1271488403 has 4 divisors (see below), whose sum is σ = 1279909008. Its totient is φ = 1263067800.

The previous prime is 1271488367. The next prime is 1271488423. The reversal of 1271488403 is 3048841721.

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 1271488403 - 2⁸ = 1271488147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1271488423) 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, 4210076 + ... + 4210377.

It is an arithmetic number, because the mean of its divisors is an integer number (319977252).

Almost surely, 2^1271488403 is an apocalyptic number.

1271488403 is a deficient number, since it is larger than the sum of its proper divisors (8420605).

1271488403 is an equidigital number, since it uses as much as digits as its factorization.

1271488403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8420604.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 1271488403 is about 35657.9360451499. The cubic root of 1271488403 is about 1083.3550226401.

The spelling of 1271488403 in words is "one billion, two hundred seventy-one million, four hundred eighty-eight thousand, four hundred three".