135708540 has 48 divisors (see below), whose sum is σ = 414529920. Its totient is φ = 32898880.

The previous prime is 135708527. The next prime is 135708553. The reversal of 135708540 is 45807531.

It is an interprime number because it is at equal distance from previous prime (135708527) and next prime (135708553).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102150 + ... + 103469.

It is an arithmetic number, because the mean of its divisors is an integer number (8636040).

Almost surely, 2^135708540 is an apocalyptic number.

135708540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135708540 is an abundant number, since it is smaller than the sum of its proper divisors (278821380).

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

135708540 is a wasteful number, since it uses less digits than its factorization.

135708540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205642 (or 205640 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 135708540 is about 11649.4008429618. The cubic root of 135708540 is about 513.8886898314. Note that the first 3 decimals are identical.

The spelling of 135708540 in words is "one hundred thirty-five million, seven hundred eight thousand, five hundred forty".