134445893 has 8 divisors (see below), whose sum is σ = 135390528. Its totient is φ = 133504864.

The previous prime is 134445889. The next prime is 134445917. The reversal of 134445893 is 398544431.

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

It is a cyclic number.

It is not a de Polignac number, because 134445893 - 2² = 134445889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 134445893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134445193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136280 + ... + 137262.

It is an arithmetic number, because the mean of its divisors is an integer number (16923816).

Almost surely, 2^134445893 is an apocalyptic number.

It is an amenable number.

134445893 is a deficient number, since it is larger than the sum of its proper divisors (944635).

134445893 is an equidigital number, since it uses as much as digits as its factorization.

134445893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803.

The product of its digits is 207360, while the sum is 41.

The square root of 134445893 is about 11595.0805516823. The cubic root of 134445893 is about 512.2899625541.

The spelling of 134445893 in words is "one hundred thirty-four million, four hundred forty-five thousand, eight hundred ninety-three".