1335347641 has 4 divisors (see below), whose sum is σ = 1335790372. Its totient is φ = 1334904912.

The previous prime is 1335347621. The next prime is 1335347647. The reversal of 1335347641 is 1467435331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1467435331 = 839 ⋅1749029.

It can be written as a sum of positive squares in 2 ways, for example, as 1085043600 + 250304041 = 32940^2 + 15821^2 .

It is a cyclic number.

It is not a de Polignac number, because 1335347641 - 2⁷ = 1335347513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1335347641.

It is not an unprimeable number, because it can be changed into a prime (1335347647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216810 + ... + 222883.

It is an arithmetic number, because the mean of its divisors is an integer number (333947593).

Almost surely, 2^1335347641 is an apocalyptic number.

It is an amenable number.

1335347641 is a deficient number, since it is larger than the sum of its proper divisors (442731).

1335347641 is an equidigital number, since it uses as much as digits as its factorization.

1335347641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442730.

The product of its digits is 90720, while the sum is 37.

The square root of 1335347641 is about 36542.4088012818. The cubic root of 1335347641 is about 1101.1963955350.

The spelling of 1335347641 in words is "one billion, three hundred thirty-five million, three hundred forty-seven thousand, six hundred forty-one".