134692639 has 4 divisors (see below), whose sum is σ = 134733256. Its totient is φ = 134652024.

The previous prime is 134692637. The next prime is 134692687. The reversal of 134692639 is 936296431.

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

It is a cyclic number.

It is not a de Polignac number, because 134692639 - 2¹ = 134692637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134692595 and 134692604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134692633) 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, 14844 + ... + 22129.

It is an arithmetic number, because the mean of its divisors is an integer number (33683314).

Almost surely, 2^134692639 is an apocalyptic number.

134692639 is a deficient number, since it is larger than the sum of its proper divisors (40617).

134692639 is an equidigital number, since it uses as much as digits as its factorization.

134692639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40616.

The product of its digits is 209952, while the sum is 43.

The square root of 134692639 is about 11605.7157900752. The cubic root of 134692639 is about 512.6031697117.

The spelling of 134692639 in words is "one hundred thirty-four million, six hundred ninety-two thousand, six hundred thirty-nine".