1271464045 has 8 divisors (see below), whose sum is σ = 1526194296. Its totient is φ = 1016879616.

The previous prime is 1271464043. The next prime is 1271464049. The reversal of 1271464045 is 5404641721.

It can be written as a sum of positive squares in 4 ways, for example, as 211440681 + 1060023364 = 14541^2 + 32558^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1271464045 - 2¹ = 1271464043 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 1271464045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271464043) 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 in 7 ways as a sum of consecutive naturals, for example, 16252 + ... + 52981.

It is an arithmetic number, because the mean of its divisors is an integer number (190774287).

Almost surely, 2^1271464045 is an apocalyptic number.

It is an amenable number.

1271464045 is a deficient number, since it is larger than the sum of its proper divisors (254730251).

1271464045 is an equidigital number, since it uses as much as digits as its factorization.

1271464045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72911.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 1271464045 is about 35657.5944926183. The cubic root of 1271464045 is about 1083.3481046244.

The spelling of 1271464045 in words is "one billion, two hundred seventy-one million, four hundred sixty-four thousand, forty-five".