1353355145 has 4 divisors (see below), whose sum is σ = 1624026180. Its totient is φ = 1082684112.

The previous prime is 1353355117. The next prime is 1353355147. The reversal of 1353355145 is 5415533531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5415533531 = 691 ⋅7837241.

It can be written as a sum of positive squares in 2 ways, for example, as 972441856 + 380913289 = 31184^2 + 19517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353355145 - 2⁸ = 1353354889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1353355147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135335510 + ... + 135335519.

It is an arithmetic number, because the mean of its divisors is an integer number (406006545).

Almost surely, 2^1353355145 is an apocalyptic number.

It is an amenable number.

1353355145 is a deficient number, since it is larger than the sum of its proper divisors (270671035).

1353355145 is an equidigital number, since it uses as much as digits as its factorization.

1353355145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270671034.

The product of its digits is 67500, while the sum is 35.

The square root of 1353355145 is about 36787.9755490840. The cubic root of 1353355145 is about 1106.1242817544.

Adding to 1353355145 its reverse (5415533531), we get a palindrome (6768888676).

The spelling of 1353355145 in words is "one billion, three hundred fifty-three million, three hundred fifty-five thousand, one hundred forty-five".