1275061264 has 45 divisors (see below), whose sum is σ = 2524436733. Its totient is φ = 623890176.

The previous prime is 1275061219. The next prime is 1275061273. The reversal of 1275061264 is 4621605721.

The square root of 1275061264 is 35708.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 22467600 + 1252593664 = 4740^2 + 35392^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 11283672 + ... + 11283784.

Almost surely, 2^1275061264 is an apocalyptic number.

1275061264 is the 35708-th square number.

It is an amenable number.

1275061264 is a deficient number, since it is larger than the sum of its proper divisors (1249375469).

1275061264 is an frugal number, since it uses more digits than its factorization.

1275061264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 34.

The cubic root of 1275061264 is about 1084.3688101134.

Adding to 1275061264 its reverse (4621605721), we get a palindrome (5896666985).

The spelling of 1275061264 in words is "one billion, two hundred seventy-five million, sixty-one thousand, two hundred sixty-four".