134231240 has 128 divisors (see below), whose sum is σ = 366750720. Its totient is φ = 43545600.

The previous prime is 134231189. The next prime is 134231249. The reversal of 134231240 is 42132431.

134231240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (134231249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 176942 + ... + 177698.

It is an arithmetic number, because the mean of its divisors is an integer number (2865240).

Almost surely, 2^134231240 is an apocalyptic number.

134231240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134231240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183375360).

134231240 is an abundant number, since it is smaller than the sum of its proper divisors (232519480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134231240 is a wasteful number, since it uses less digits than its factorization.

134231240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 134231240 is about 11585.8206442185. The cubic root of 134231240 is about 512.0171808200.

Adding to 134231240 its reverse (42132431), we get a palindrome (176363671).

The spelling of 134231240 in words is "one hundred thirty-four million, two hundred thirty-one thousand, two hundred forty".