1355049 has 10 divisors (see below), whose sum is σ = 2024330. Its totient is φ = 903312.

The previous prime is 1355047. The next prime is 1355063. The reversal of 1355049 is 9405531.

It can be written as a sum of positive squares in only one way, i.e., 1225449 + 129600 = 1107^2 + 360^2 .

It is not a de Polignac number, because 1355049 - 2¹ = 1355047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1355047) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 8284 + ... + 8445.

It is an arithmetic number, because the mean of its divisors is an integer number (202433).

2^1355049 is an apocalyptic number.

It is an amenable number.

1355049 is a deficient number, since it is larger than the sum of its proper divisors (669281).

1355049 is an equidigital number, since it uses as much as digits as its factorization.

1355049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16741 (or 16732 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1355049 is about 1164.0657197942. The cubic root of 1355049 is about 110.6585563241.

It can be divided in two parts, 135 and 5049, that added together give a square (5184 = 72²).

The spelling of 1355049 in words is "one million, three hundred fifty-five thousand, forty-nine".