134021739 has 4 divisors (see below), whose sum is σ = 178695656. Its totient is φ = 89347824.

The previous prime is 134021717. The next prime is 134021747. The reversal of 134021739 is 937120431.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 134021739 - 2⁵ = 134021707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134021749) 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, 22336954 + ... + 22336959.

It is an arithmetic number, because the mean of its divisors is an integer number (44673914).

Almost surely, 2^134021739 is an apocalyptic number.

134021739 is a deficient number, since it is larger than the sum of its proper divisors (44673917).

134021739 is an equidigital number, since it uses as much as digits as its factorization.

134021739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44673916.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 134021739 is about 11576.7758464954. The cubic root of 134021739 is about 511.7506656978.

The spelling of 134021739 in words is "one hundred thirty-four million, twenty-one thousand, seven hundred thirty-nine".