1264523266 has 8 divisors (see below), whose sum is σ = 1896961680. Its totient is φ = 632202708.

The previous prime is 1264523261. The next prime is 1264523269. The reversal of 1264523266 is 6623254621.

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

It is not an unprimeable number, because it can be changed into a prime (1264523261) 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 3 ways as a sum of consecutive naturals, for example, 5805 + ... + 50623.

It is an arithmetic number, because the mean of its divisors is an integer number (237120210).

Almost surely, 2^1264523266 is an apocalyptic number.

1264523266 is a deficient number, since it is larger than the sum of its proper divisors (632438414).

1264523266 is a wasteful number, since it uses less digits than its factorization.

1264523266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58928.

The product of its digits is 103680, while the sum is 37.

The square root of 1264523266 is about 35560.1359108764. The cubic root of 1264523266 is about 1081.3732149292.

Adding to 1264523266 its reverse (6623254621), we get a palindrome (7887777887).

The spelling of 1264523266 in words is "one billion, two hundred sixty-four million, five hundred twenty-three thousand, two hundred sixty-six".