135406955 has 16 divisors (see below), whose sum is σ = 172640160. Its totient is φ = 101601792.

The previous prime is 135406951. The next prime is 135406987. The reversal of 135406955 is 559604531.

It is not a de Polignac number, because 135406955 - 2² = 135406951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135406951) by changing a digit.

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, 23501 + ... + 28689.

It is an arithmetic number, because the mean of its divisors is an integer number (10790010).

Almost surely, 2^135406955 is an apocalyptic number.

135406955 is a deficient number, since it is larger than the sum of its proper divisors (37233205).

135406955 is a wasteful number, since it uses less digits than its factorization.

135406955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5518.

The product of its (nonzero) digits is 81000, while the sum is 38.

The square root of 135406955 is about 11636.4494155219. The cubic root of 135406955 is about 513.5077359939.

The spelling of 135406955 in words is "one hundred thirty-five million, four hundred six thousand, nine hundred fifty-five".