134231420 has 12 divisors (see below), whose sum is σ = 281886024. Its totient is φ = 53692560.

The previous prime is 134231407. The next prime is 134231437. The reversal of 134231420 is 24132431.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 6711571 = 134231420 / (1 + 3 + 4 + 2 + 3 + 1 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 134231392 and 134231401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3355766 + ... + 3355805.

It is an arithmetic number, because the mean of its divisors is an integer number (23490502).

Almost surely, 2^134231420 is an apocalyptic number.

134231420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134231420 is an abundant number, since it is smaller than the sum of its proper divisors (147654604).

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

134231420 is a wasteful number, since it uses less digits than its factorization.

134231420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6711580 (or 6711578 counting only the distinct ones).

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

The square root of 134231420 is about 11585.8284123320. The cubic root of 134231420 is about 512.0174096863.

Adding to 134231420 its reverse (24132431), we get a palindrome (158363851).

The spelling of 134231420 in words is "one hundred thirty-four million, two hundred thirty-one thousand, four hundred twenty".