135440260 has 12 divisors (see below), whose sum is σ = 284424588. Its totient is φ = 54176096.

The previous prime is 135440251. The next prime is 135440297. The reversal of 135440260 is 62044531.

It can be written as a sum of positive squares in 2 ways, for example, as 81974916 + 53465344 = 9054^2 + 7312^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3385987 + ... + 3386026.

It is an arithmetic number, because the mean of its divisors is an integer number (23702049).

Almost surely, 2^135440260 is an apocalyptic number.

135440260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135440260 is an abundant number, since it is smaller than the sum of its proper divisors (148984328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135440260 is a wasteful number, since it uses less digits than its factorization.

135440260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6772022 (or 6772020 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 135440260 is about 11637.8803912053. The cubic root of 135440260 is about 513.5498337161.

Adding to 135440260 its reverse (62044531), we get a palindrome (197484791).

It can be divided in two parts, 1354 and 40260, that added together give a palindrome (41614).

The spelling of 135440260 in words is "one hundred thirty-five million, four hundred forty thousand, two hundred sixty".