1264535 has 8 divisors (see below), whose sum is σ = 1550016. Its totient is φ = 989920.

The previous prime is 1264499. The next prime is 1264537. The reversal of 1264535 is 5354621.

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

It is not a de Polignac number, because 1264535 - 2¹⁰ = 1263511 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 (1264537) 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, 2456 + ... + 2925.

It is an arithmetic number, because the mean of its divisors is an integer number (193752).

2^1264535 is an apocalyptic number.

1264535 is a deficient number, since it is larger than the sum of its proper divisors (285481).

1264535 is an equidigital number, since it uses as much as digits as its factorization.

1264535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5433.

The product of its digits is 3600, while the sum is 26.

The square root of 1264535 is about 1124.5154512055. The cubic root of 1264535 is about 108.1376559745.

The spelling of 1264535 in words is "one million, two hundred sixty-four thousand, five hundred thirty-five".