1268523164 has 6 divisors (see below), whose sum is σ = 2219915544. Its totient is φ = 634261580.

The previous prime is 1268523161. The next prime is 1268523169. The reversal of 1268523164 is 4613258621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268523161) 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, 158565392 + ... + 158565399.

It is an arithmetic number, because the mean of its divisors is an integer number (369985924).

Almost surely, 2^1268523164 is an apocalyptic number.

It is an amenable number.

1268523164 is a deficient number, since it is larger than the sum of its proper divisors (951392380).

1268523164 is a wasteful number, since it uses less digits than its factorization.

1268523164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317130795 (or 317130793 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 1268523164 is about 35616.3328263874. The cubic root of 1268523164 is about 1082.5122027828.

The spelling of 1268523164 in words is "one billion, two hundred sixty-eight million, five hundred twenty-three thousand, one hundred sixty-four".