1264355 has 8 divisors (see below), whose sum is σ = 1597200. Its totient is φ = 958176.

The previous prime is 1264337. The next prime is 1264363. The reversal of 1264355 is 5534621.

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

It is a cyclic number.

It is not a de Polignac number, because 1264355 - 2¹⁰ = 1263331 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6560 + ... + 6749.

It is an arithmetic number, because the mean of its divisors is an integer number (199650).

2^1264355 is an apocalyptic number.

1264355 is a deficient number, since it is larger than the sum of its proper divisors (332845).

1264355 is a wasteful number, since it uses less digits than its factorization.

1264355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13333.

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

The square root of 1264355 is about 1124.4354138856. The cubic root of 1264355 is about 108.1325247862.

Adding to 1264355 its reverse (5534621), we get a palindrome (6798976).

The spelling of 1264355 in words is "one million, two hundred sixty-four thousand, three hundred fifty-five".