134238999 has 16 divisors (see below), whose sum is σ = 187002720. Its totient is φ = 85545600.

The previous prime is 134238943. The next prime is 134239013. The reversal of 134238999 is 999832431.

It is not a de Polignac number, because 134238999 - 2¹¹ = 134236951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134238199) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1149 + ... + 16425.

It is an arithmetic number, because the mean of its divisors is an integer number (11687670).

Almost surely, 2^134238999 is an apocalyptic number.

134238999 is a deficient number, since it is larger than the sum of its proper divisors (52763721).

134238999 is a wasteful number, since it uses less digits than its factorization.

134238999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15410.

The product of its digits is 419904, while the sum is 48.

The square root of 134238999 is about 11586.1554883404. The cubic root of 134238999 is about 512.0270460465.

It can be divided in two parts, 13423 and 8999, that added together give a palindrome (22422).

The spelling of 134238999 in words is "one hundred thirty-four million, two hundred thirty-eight thousand, nine hundred ninety-nine".