135731140 has 12 divisors (see below), whose sum is σ = 285035436. Its totient is φ = 54292448.

The previous prime is 135731083. The next prime is 135731153. The reversal of 135731140 is 41137531.

It can be written as a sum of positive squares in 2 ways, for example, as 41679936 + 94051204 = 6456^2 + 9698^2 .

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, 3393259 + ... + 3393298.

It is an arithmetic number, because the mean of its divisors is an integer number (23752953).

Almost surely, 2^135731140 is an apocalyptic number.

135731140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135731140 is an abundant number, since it is smaller than the sum of its proper divisors (149304296).

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

135731140 is a wasteful number, since it uses less digits than its factorization.

135731140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6786566 (or 6786564 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 135731140 is about 11650.3708095494. The cubic root of 135731140 is about 513.9172147858.

Adding to 135731140 its reverse (41137531), we get a palindrome (176868671).

The spelling of 135731140 in words is "one hundred thirty-five million, seven hundred thirty-one thousand, one hundred forty".