1264545064 has 8 divisors (see below), whose sum is σ = 2371022010. Its totient is φ = 632272528.

The previous prime is 1264544987. The next prime is 1264545077. The reversal of 1264545064 is 4605454621.

It can be written as a sum of positive squares in only one way, i.e., 870840100 + 393704964 = 29510^2 + 19842^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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 as a sum of consecutive naturals, namely, 79034059 + ... + 79034074.

Almost surely, 2^1264545064 is an apocalyptic number.

It is an amenable number.

1264545064 is a deficient number, since it is larger than the sum of its proper divisors (1106476946).

1264545064 is a wasteful number, since it uses less digits than its factorization.

1264545064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158068139 (or 158068135 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 37.

The square root of 1264545064 is about 35560.4424044471. The cubic root of 1264545064 is about 1081.3794285061.

Adding to 1264545064 its reverse (4605454621), we get a palindrome (5869999685).

The spelling of 1264545064 in words is "one billion, two hundred sixty-four million, five hundred forty-five thousand, sixty-four".