134904673 has 4 divisors (see below), whose sum is σ = 142840260. Its totient is φ = 126969088.

The previous prime is 134904659. The next prime is 134904691. The reversal of 134904673 is 376409431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 376409431 = 2753 ⋅136727.

It can be written as a sum of positive squares in 2 ways, for example, as 88228449 + 46676224 = 9393^2 + 6832^2 .

It is a cyclic number.

It is not a de Polignac number, because 134904673 - 2⁵ = 134904641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134901673) 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, 3967768 + ... + 3967801.

It is an arithmetic number, because the mean of its divisors is an integer number (35710065).

Almost surely, 2^134904673 is an apocalyptic number.

It is an amenable number.

134904673 is a deficient number, since it is larger than the sum of its proper divisors (7935587).

134904673 is an equidigital number, since it uses as much as digits as its factorization.

134904673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7935586.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 134904673 is about 11614.8470932682. The cubic root of 134904673 is about 512.8720097364.

The spelling of 134904673 in words is "one hundred thirty-four million, nine hundred four thousand, six hundred seventy-three".