134968861 has 4 divisors (see below), whose sum is σ = 135940000. Its totient is φ = 133997724.

The previous prime is 134968781. The next prime is 134968877. The reversal of 134968861 is 168869431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 168869431 = 31 ⋅5447401.

It is a cyclic number.

It is not a de Polignac number, because 134968861 - 2¹³ = 134960669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134968061) 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, 485361 + ... + 485638.

It is an arithmetic number, because the mean of its divisors is an integer number (33985000).

Almost surely, 2^134968861 is an apocalyptic number.

It is an amenable number.

134968861 is a deficient number, since it is larger than the sum of its proper divisors (971139).

134968861 is an equidigital number, since it uses as much as digits as its factorization.

134968861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971138.

The product of its digits is 248832, while the sum is 46.

The square root of 134968861 is about 11617.6099521373. The cubic root of 134968861 is about 512.9533387915.

The spelling of 134968861 in words is "one hundred thirty-four million, nine hundred sixty-eight thousand, eight hundred sixty-one".