135731090 has 32 divisors (see below), whose sum is σ = 270193536. Its totient is φ = 48677760.

The previous prime is 135731083. The next prime is 135731153. The reversal of 135731090 is 90137531.

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, 422 + ... + 16481.

It is an arithmetic number, because the mean of its divisors is an integer number (8443548).

Almost surely, 2^135731090 is an apocalyptic number.

135731090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135731090 is a deficient number, since it is larger than the sum of its proper divisors (134462446).

135731090 is a wasteful number, since it uses less digits than its factorization.

135731090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16994.

The product of its (nonzero) digits is 2835, while the sum is 29.

The square root of 135731090 is about 11650.3686636947. The cubic root of 135731090 is about 513.9171516810.

The spelling of 135731090 in words is "one hundred thirty-five million, seven hundred thirty-one thousand, ninety".