134444651 has 4 divisors (see below), whose sum is σ = 146666904. Its totient is φ = 122222400.

The previous prime is 134444647. The next prime is 134444663. The reversal of 134444651 is 156444431.

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 134444651 - 2² = 134444647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134444621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6111110 + ... + 6111131.

It is an arithmetic number, because the mean of its divisors is an integer number (36666726).

Almost surely, 2^134444651 is an apocalyptic number.

134444651 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

134444651 is a deficient number, since it is larger than the sum of its proper divisors (12222253).

134444651 is a wasteful number, since it uses less digits than its factorization.

134444651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12222252.

The product of its digits is 23040, while the sum is 32.

The square root of 134444651 is about 11595.0269943627. The cubic root of 134444651 is about 512.2883850519.

The spelling of 134444651 in words is "one hundred thirty-four million, four hundred forty-four thousand, six hundred fifty-one".