134432421 has 8 divisors (see below), whose sum is σ = 180655104. Its totient is φ = 88915680.

The previous prime is 134432411. The next prime is 134432449. The reversal of 134432421 is 124234431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134432421 - 2⁷ = 134432293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 134432391 and 134432400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134432411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 176040 + ... + 176801.

It is an arithmetic number, because the mean of its divisors is an integer number (22581888).

Almost surely, 2^134432421 is an apocalyptic number.

It is an amenable number.

134432421 is a deficient number, since it is larger than the sum of its proper divisors (46222683).

134432421 is a wasteful number, since it uses less digits than its factorization.

134432421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352971.

The product of its digits is 2304, while the sum is 24.

The square root of 134432421 is about 11594.4996011040. The cubic root of 134432421 is about 512.2728508354.

Adding to 134432421 its reverse (124234431), we get a palindrome (258666852).

The spelling of 134432421 in words is "one hundred thirty-four million, four hundred thirty-two thousand, four hundred twenty-one".