134913021 has 4 divisors (see below), whose sum is σ = 179884032. Its totient is φ = 89942012.

The previous prime is 134913019. The next prime is 134913061. The reversal of 134913021 is 120319431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134913021 - 2¹ = 134913019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 134912982 and 134913000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134913011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22485501 + ... + 22485506.

It is an arithmetic number, because the mean of its divisors is an integer number (44971008).

Almost surely, 2^134913021 is an apocalyptic number.

It is an amenable number.

134913021 is a deficient number, since it is larger than the sum of its proper divisors (44971011).

134913021 is an equidigital number, since it uses as much as digits as its factorization.

134913021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44971010.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 134913021 is about 11615.2064553326. The cubic root of 134913021 is about 512.8825884834.

The spelling of 134913021 in words is "one hundred thirty-four million, nine hundred thirteen thousand, twenty-one".