134438961 has 16 divisors (see below), whose sum is σ = 182016000. Its totient is φ = 88250448.

The previous prime is 134438957. The next prime is 134438981. The reversal of 134438961 is 169834431.

It is not a de Polignac number, because 134438961 - 2² = 134438957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134438911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141490 + ... + 142436.

It is an arithmetic number, because the mean of its divisors is an integer number (11376000).

Almost surely, 2^134438961 is an apocalyptic number.

It is an amenable number.

134438961 is a deficient number, since it is larger than the sum of its proper divisors (47577039).

134438961 is an equidigital number, since it uses as much as digits as its factorization.

134438961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1628.

The product of its digits is 62208, while the sum is 39.

The square root of 134438961 is about 11594.7816279566. The cubic root of 134438961 is about 512.2811578844.

The spelling of 134438961 in words is "one hundred thirty-four million, four hundred thirty-eight thousand, nine hundred sixty-one".