1335540231 has 10 divisors (see below), whose sum is σ = 1995066392. Its totient is φ = 890360100.

The previous prime is 1335540223. The next prime is 1335540259. The reversal of 1335540231 is 1320455331.

It is not a de Polignac number, because 1335540231 - 2³ = 1335540223 is a prime.

It is a super-2 number, since 2×1335540231² = 3567335417239066722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1335540195 and 1335540204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1335540211) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 8243995 + ... + 8244156.

Almost surely, 2^1335540231 is an apocalyptic number.

1335540231 is a deficient number, since it is larger than the sum of its proper divisors (659526161).

1335540231 is an equidigital number, since it uses as much as digits as its factorization.

1335540231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16488163 (or 16488154 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

The square root of 1335540231 is about 36545.0438637033. The cubic root of 1335540231 is about 1101.2493328657.

Adding to 1335540231 its reverse (1320455331), we get a palindrome (2655995562).

The spelling of 1335540231 in words is "one billion, three hundred thirty-five million, five hundred forty thousand, two hundred thirty-one".