134144861 has 2 divisors, whose sum is σ = 134144862. Its totient is φ = 134144860.

The previous prime is 134144851. The next prime is 134144887. The reversal of 134144861 is 168441431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106213636 + 27931225 = 10306^2 + 5285^2 .

It is a cyclic number.

It is not a de Polignac number, because 134144861 - 2⁶ = 134144797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134144851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67072430 + 67072431.

It is an arithmetic number, because the mean of its divisors is an integer number (67072431).

Almost surely, 2^134144861 is an apocalyptic number.

It is an amenable number.

134144861 is a deficient number, since it is larger than the sum of its proper divisors (1).

134144861 is an equidigital number, since it uses as much as digits as its factorization.

134144861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 32.

The square root of 134144861 is about 11582.0922548562. The cubic root of 134144861 is about 511.9073280455.

The spelling of 134144861 in words is "one hundred thirty-four million, one hundred forty-four thousand, eight hundred sixty-one".