135520738 has 16 divisors (see below), whose sum is σ = 212823936. Its totient is φ = 64599040.

The previous prime is 135520733. The next prime is 135520739. The reversal of 135520738 is 837025531.

It is not an unprimeable number, because it can be changed into a prime (135520733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9570 + ... + 19042.

It is an arithmetic number, because the mean of its divisors is an integer number (13301496).

Almost surely, 2^135520738 is an apocalyptic number.

135520738 is a deficient number, since it is larger than the sum of its proper divisors (77303198).

135520738 is a wasteful number, since it uses less digits than its factorization.

135520738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9809.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 135520738 is about 11641.3374661162. The cubic root of 135520738 is about 513.6515299186.

The spelling of 135520738 in words is "one hundred thirty-five million, five hundred twenty thousand, seven hundred thirty-eight".