1264512 has 64 divisors (see below), whose sum is σ = 3488400. Its totient is φ = 405504.

The previous prime is 1264499. The next prime is 1264537. The reversal of 1264512 is 2154621.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14164 + ... + 14252.

2^1264512 is an apocalyptic number.

1264512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1744200).

1264512 is an abundant number, since it is smaller than the sum of its proper divisors (2223888).

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

1264512 is an equidigital number, since it uses as much as digits as its factorization.

1264512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 131 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 1264512 is about 1124.5052245321. The cubic root of 1264512 is about 108.1370003498.

The spelling of 1264512 in words is "one million, two hundred sixty-four thousand, five hundred twelve".