135396490 has 16 divisors (see below), whose sum is σ = 244442952. Its totient is φ = 53996544.

The previous prime is 135396467. The next prime is 135396493. The reversal of 135396490 is 94693531.

135396490 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 122744241 + 12652249 = 11079^2 + 3557^2 .

It is not an unprimeable number, because it can be changed into a prime (135396493) 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, 16719 + ... + 23458.

Almost surely, 2^135396490 is an apocalyptic number.

135396490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135396490 is a deficient number, since it is larger than the sum of its proper divisors (109046462).

135396490 is a wasteful number, since it uses less digits than its factorization.

135396490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40521.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 135396490 is about 11635.9997421794. Note that the first 3 decimals coincide. The cubic root of 135396490 is about 513.4945067450.

The spelling of 135396490 in words is "one hundred thirty-five million, three hundred ninety-six thousand, four hundred ninety".