134992493 has 2 divisors, whose sum is σ = 134992494. Its totient is φ = 134992492.

The previous prime is 134992483. The next prime is 134992547. The reversal of 134992493 is 394299431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68194564 + 66797929 = 8258^2 + 8173^2 .

It is an emirp because it is prime and its reverse (394299431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134992493 - 2²⁴ = 118215277 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134992423) 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 as a sum of consecutive naturals, namely, 67496246 + 67496247.

It is an arithmetic number, because the mean of its divisors is an integer number (67496247).

Almost surely, 2^134992493 is an apocalyptic number.

It is an amenable number.

134992493 is a deficient number, since it is larger than the sum of its proper divisors (1).

134992493 is an equidigital number, since it uses as much as digits as its factorization.

134992493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 44.

The square root of 134992493 is about 11618.6269842869. The cubic root of 134992493 is about 512.9832750938.

The spelling of 134992493 in words is "one hundred thirty-four million, nine hundred ninety-two thousand, four hundred ninety-three".