1335420145 has 4 divisors (see below), whose sum is σ = 1602504180. Its totient is φ = 1068336112.

The previous prime is 1335420137. The next prime is 1335420167. The reversal of 1335420145 is 5410245331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5410245331 = 6779 ⋅798089.

It can be written as a sum of positive squares in 2 ways, for example, as 241398369 + 1094021776 = 15537^2 + 33076^2 .

It is a cyclic number.

It is not a de Polignac number, because 1335420145 - 2³ = 1335420137 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133542010 + ... + 133542019.

It is an arithmetic number, because the mean of its divisors is an integer number (400626045).

Almost surely, 2^1335420145 is an apocalyptic number.

It is an amenable number.

1335420145 is a deficient number, since it is larger than the sum of its proper divisors (267084035).

1335420145 is an equidigital number, since it uses as much as digits as its factorization.

1335420145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267084034.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1335420145 is about 36543.4008406443. The cubic root of 1335420145 is about 1101.2163253510.

Adding to 1335420145 its reverse (5410245331), we get a palindrome (6745665476).

It can be divided in two parts, 133 and 5420145, that added together give a triangular number (5420278 = T₃₂₉₂).

The spelling of 1335420145 in words is "one billion, three hundred thirty-five million, four hundred twenty thousand, one hundred forty-five".