1264805 has 8 divisors (see below), whose sum is σ = 1530144. Its totient is φ = 1003600.

The previous prime is 1264801. The next prime is 1264807. The reversal of 1264805 is 5084621.

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

It is not a de Polignac number, because 1264805 - 2² = 1264801 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311 + ... + 1620.

It is an arithmetic number, because the mean of its divisors is an integer number (191268).

2^1264805 is an apocalyptic number.

It is an amenable number.

1264805 is a deficient number, since it is larger than the sum of its proper divisors (265339).

1264805 is a wasteful number, since it uses less digits than its factorization.

1264805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2067.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 1264805 is about 1124.6354965054. The cubic root of 1264805 is about 108.1453518441.

The spelling of 1264805 in words is "one million, two hundred sixty-four thousand, eight hundred five".