134756421 has 8 divisors (see below), whose sum is σ = 180616704. Its totient is φ = 89366880.

The previous prime is 134756407. The next prime is 134756429. The reversal of 134756421 is 124657431.

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

It is not a de Polignac number, because 134756421 - 2¹⁵ = 134723653 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134756429) 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, 117016 + ... + 118161.

It is an arithmetic number, because the mean of its divisors is an integer number (22577088).

Almost surely, 2^134756421 is an apocalyptic number.

It is an amenable number.

134756421 is a deficient number, since it is larger than the sum of its proper divisors (45860283).

134756421 is a wasteful number, since it uses less digits than its factorization.

134756421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235371.

The product of its digits is 20160, while the sum is 33.

The square root of 134756421 is about 11608.4633349983. The cubic root of 134756421 is about 512.6840691982.

The spelling of 134756421 in words is "one hundred thirty-four million, seven hundred fifty-six thousand, four hundred twenty-one".