134231440 has 40 divisors (see below), whose sum is σ = 356673600. Its totient is φ = 46022016.

The previous prime is 134231437. The next prime is 134231441. The reversal of 134231440 is 44132431.

134231440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (134231441) 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 7 ways as a sum of consecutive naturals, for example, 119290 + ... + 120409.

It is an arithmetic number, because the mean of its divisors is an integer number (8916840).

Almost surely, 2^134231440 is an apocalyptic number.

134231440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134231440 is an abundant number, since it is smaller than the sum of its proper divisors (222442160).

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

134231440 is a wasteful number, since it uses less digits than its factorization.

134231440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239719 (or 239713 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 134231440 is about 11585.8292754554. The cubic root of 134231440 is about 512.0174351159.

Adding to 134231440 its reverse (44132431), we get a palindrome (178363871).

Subtracting from 134231440 its reverse (44132431), we obtain a palindrome (90099009).

The spelling of 134231440 in words is "one hundred thirty-four million, two hundred thirty-one thousand, four hundred forty".