1355089 has 2 divisors, whose sum is σ = 1355090. Its totient is φ = 1355088.

The previous prime is 1355071. The next prime is 1355113. The reversal of 1355089 is 9805531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1113025 + 242064 = 1055^2 + 492^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355089 - 2¹⁹ = 830801 is a prime.

1355089 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 1355089.

It is not a weakly prime, because it can be changed into another prime (1355989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677544 + 677545.

It is an arithmetic number, because the mean of its divisors is an integer number (677545).

2^1355089 is an apocalyptic number.

It is an amenable number.

1355089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355089 is an equidigital number, since it uses as much as digits as its factorization.

1355089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 1355089 is about 1164.0829008279. The cubic root of 1355089 is about 110.6596451651.

The spelling of 1355089 in words is "one million, three hundred fifty-five thousand, eighty-nine".