134721934 has 4 divisors (see below), whose sum is σ = 202082904. Its totient is φ = 67360966.

The previous prime is 134721931. The next prime is 134721943. The reversal of 134721934 is 439127431.

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

It is a self number, because there is not a number n which added to its sum of digits gives 134721934.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134721931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33680482 + ... + 33680485.

It is an arithmetic number, because the mean of its divisors is an integer number (50520726).

Almost surely, 2^134721934 is an apocalyptic number.

134721934 is a deficient number, since it is larger than the sum of its proper divisors (67360970).

134721934 is an equidigital number, since it uses as much as digits as its factorization.

134721934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67360969.

The product of its digits is 18144, while the sum is 34.

The square root of 134721934 is about 11606.9778150904. The cubic root of 134721934 is about 512.6403299243.

The spelling of 134721934 in words is "one hundred thirty-four million, seven hundred twenty-one thousand, nine hundred thirty-four".