1355291 has 12 divisors (see below), whose sum is σ = 1670328. Its totient is φ = 1092672.

The previous prime is 1355281. The next prime is 1355293. The reversal of 1355291 is 1925531.

It is not a de Polignac number, because 1355291 - 2¹⁰ = 1354267 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1355291.

It is not an unprimeable number, because it can be changed into a prime (1355293) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 20 + ... + 1646.

It is an arithmetic number, because the mean of its divisors is an integer number (139194).

2^1355291 is an apocalyptic number.

1355291 is a deficient number, since it is larger than the sum of its proper divisors (315037).

1355291 is a wasteful number, since it uses less digits than its factorization.

1355291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 1651 counting only the distinct ones).

The product of its digits is 1350, while the sum is 26.

The square root of 1355291 is about 1164.1696611749. The cubic root of 1355291 is about 110.6651434848.

The spelling of 1355291 in words is "one million, three hundred fifty-five thousand, two hundred ninety-one".