1271304 has 24 divisors (see below), whose sum is σ = 3443310. Its totient is φ = 423744.

The previous prime is 1271299. The next prime is 1271317. The reversal of 1271304 is 4031721.

It can be written as a sum of positive squares in only one way, i.e., 1232100 + 39204 = 1110^2 + 198^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8757 + ... + 8900.

2^1271304 is an apocalyptic number.

It is an amenable number.

1271304 is an abundant number, since it is smaller than the sum of its proper divisors (2172006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271304 is a wasteful number, since it uses less digits than its factorization.

1271304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17669 (or 17662 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1271304 is about 1127.5211749675. The cubic root of 1271304 is about 108.3302647389.

It can be divided in two parts, 127 and 1304, that added together give a triangular number (1431 = T₅₃).

The spelling of 1271304 in words is "one million, two hundred seventy-one thousand, three hundred four".