134542493 has 2 divisors, whose sum is σ = 134542494. Its totient is φ = 134542492.

The previous prime is 134542489. The next prime is 134542523. The reversal of 134542493 is 394245431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110208004 + 24334489 = 10498^2 + 4933^2 .

It is a cyclic number.

It is not a de Polignac number, because 134542493 - 2² = 134542489 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 (134542483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67271246 + 67271247.

It is an arithmetic number, because the mean of its divisors is an integer number (67271247).

Almost surely, 2^134542493 is an apocalyptic number.

It is an amenable number.

134542493 is a deficient number, since it is larger than the sum of its proper divisors (1).

134542493 is an equidigital number, since it uses as much as digits as its factorization.

134542493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 35.

The square root of 134542493 is about 11599.2453633846. The cubic root of 134542493 is about 512.4126274214.

The spelling of 134542493 in words is "one hundred thirty-four million, five hundred forty-two thousand, four hundred ninety-three".