134444642 has 8 divisors (see below), whose sum is σ = 201738432. Its totient is φ = 67198500.

The previous prime is 134444641. The next prime is 134444647. The reversal of 134444642 is 246444431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 134444599 and 134444608.

It is not an unprimeable number, because it can be changed into a prime (134444641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3734 + ... + 16817.

It is an arithmetic number, because the mean of its divisors is an integer number (25217304).

Almost surely, 2^134444642 is an apocalyptic number.

134444642 is a deficient number, since it is larger than the sum of its proper divisors (67293790).

134444642 is a wasteful number, since it uses less digits than its factorization.

134444642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23824.

The product of its digits is 36864, while the sum is 32.

The square root of 134444642 is about 11595.0266062653. The cubic root of 134444642 is about 512.2883736207.

The spelling of 134444642 in words is "one hundred thirty-four million, four hundred forty-four thousand, six hundred forty-two".