1355332145 has 4 divisors (see below), whose sum is σ = 1626398580. Its totient is φ = 1084265712.

The previous prime is 1355332141. The next prime is 1355332169. The reversal of 1355332145 is 5412335531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 222875041 + 1132457104 = 14929^2 + 33652^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355332145 - 2² = 1355332141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1355332141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135533210 + ... + 135533219.

It is an arithmetic number, because the mean of its divisors is an integer number (406599645).

Almost surely, 2^1355332145 is an apocalyptic number.

It is an amenable number.

1355332145 is a deficient number, since it is larger than the sum of its proper divisors (271066435).

1355332145 is an equidigital number, since it uses as much as digits as its factorization.

1355332145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271066434.

The product of its digits is 27000, while the sum is 32.

The square root of 1355332145 is about 36814.8359360734. The cubic root of 1355332145 is about 1106.6626336021.

Adding to 1355332145 its reverse (5412335531), we get a palindrome (6767667676).

The spelling of 1355332145 in words is "one billion, three hundred fifty-five million, three hundred thirty-two thousand, one hundred forty-five".