135140624 has 20 divisors (see below), whose sum is σ = 262060236. Its totient is φ = 67512192.

The previous prime is 135140611. The next prime is 135140653. The reversal of 135140624 is 426041531.

It is a Cunningham number, because it is equal to 11625²-1.

It can be written as a sum of positive squares in 2 ways, for example, as 117332224 + 17808400 = 10832^2 + 4220^2 .

It is a junction number, because it is equal to n+sod(n) for n = 135140593 and 135140602.

It is a congruent number.

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, 20342 + ... + 26154.

Almost surely, 2^135140624 is an apocalyptic number.

It is an amenable number.

135140624 is a deficient number, since it is larger than the sum of its proper divisors (126919612).

135140624 is a wasteful number, since it uses less digits than its factorization.

135140624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7274 (or 7268 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 135140624 is about 11624.9999569892. Note that the first 4 decimals coincide. The cubic root of 135140624 is about 513.1708434194.

The spelling of 135140624 in words is "one hundred thirty-five million, one hundred forty thousand, six hundred twenty-four".