135644546 has 16 divisors (see below), whose sum is σ = 205450560. Its totient is φ = 67164240.

The previous prime is 135644527. The next prime is 135644549. The reversal of 135644546 is 645446531.

It is a super-2 number, since 2×135644546² = 36798885719092232, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135644549) 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, 131051 + ... + 132081.

It is an arithmetic number, because the mean of its divisors is an integer number (12840660).

Almost surely, 2^135644546 is an apocalyptic number.

135644546 is a deficient number, since it is larger than the sum of its proper divisors (69806014).

135644546 is a wasteful number, since it uses less digits than its factorization.

135644546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609.

The product of its digits is 172800, while the sum is 38.

The square root of 135644546 is about 11646.6538542192. The cubic root of 135644546 is about 513.8079015889.

The spelling of 135644546 in words is "one hundred thirty-five million, six hundred forty-four thousand, five hundred forty-six".