1264197064 has 48 divisors (see below), whose sum is σ = 2602095300. Its totient is φ = 575437824.

The previous prime is 1264197059. The next prime is 1264197083. The reversal of 1264197064 is 4607914621.

It can be written as a sum of positive squares in 6 ways, for example, as 135908964 + 1128288100 = 11658^2 + 33590^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92292 + ... + 105100.

Almost surely, 2^1264197064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264197064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1301047650).

1264197064 is an abundant number, since it is smaller than the sum of its proper divisors (1337898236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1264197064 is a wasteful number, since it uses less digits than its factorization.

1264197064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12914 (or 12897 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 1264197064 is about 35555.5489902772. The cubic root of 1264197064 is about 1081.2802216641.

The spelling of 1264197064 in words is "one billion, two hundred sixty-four million, one hundred ninety-seven thousand, sixty-four".