135691010 has 32 divisors (see below), whose sum is σ = 300609792. Its totient is φ = 42943680.

The previous prime is 135691001. The next prime is 135691033. The reversal of 135691010 is 10196531.

135691010 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73646 + ... + 75465.

It is an arithmetic number, because the mean of its divisors is an integer number (9394056).

Almost surely, 2^135691010 is an apocalyptic number.

135691010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135691010 is an abundant number, since it is smaller than the sum of its proper divisors (164918782).

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

135691010 is a wasteful number, since it uses less digits than its factorization.

135691010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149138.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 135691010 is about 11648.6484194519. The cubic root of 135691010 is about 513.8665618782.

The spelling of 135691010 in words is "one hundred thirty-five million, six hundred ninety-one thousand, ten".