1271147204 has 6 divisors (see below), whose sum is σ = 2224507614. Its totient is φ = 635573600.

The previous prime is 1271147201. The next prime is 1271147221. The reversal of 1271147204 is 4027411721.

It can be written as a sum of positive squares in only one way, i.e., 697065604 + 574081600 = 26402^2 + 23960^2 .

It is not an unprimeable number, because it can be changed into a prime (1271147201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158893397 + ... + 158893404.

It is an arithmetic number, because the mean of its divisors is an integer number (370751269).

Almost surely, 2^1271147204 is an apocalyptic number.

It is an amenable number.

1271147204 is a deficient number, since it is larger than the sum of its proper divisors (953360410).

1271147204 is a wasteful number, since it uses less digits than its factorization.

1271147204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317786805 (or 317786803 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 1271147204 is about 35653.1513894635. The cubic root of 1271147204 is about 1083.2581092593.

Adding to 1271147204 its reverse (4027411721), we get a palindrome (5298558925).

The spelling of 1271147204 in words is "one billion, two hundred seventy-one million, one hundred forty-seven thousand, two hundred four".