134188493 has 2 divisors, whose sum is σ = 134188494. Its totient is φ = 134188492.

The previous prime is 134188487. The next prime is 134188543. The reversal of 134188493 is 394881431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89056969 + 45131524 = 9437^2 + 6718^2 .

It is a cyclic number.

It is not a de Polignac number, because 134188493 - 2¹⁸ = 133926349 is a prime.

It is a super-2 number, since 2×134188493² = 36013103307222098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 134188493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134688493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67094246 + 67094247.

It is an arithmetic number, because the mean of its divisors is an integer number (67094247).

Almost surely, 2^134188493 is an apocalyptic number.

It is an amenable number.

134188493 is a deficient number, since it is larger than the sum of its proper divisors (1).

134188493 is an equidigital number, since it uses as much as digits as its factorization.

134188493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 134188493 is about 11583.9756992148. The cubic root of 134188493 is about 511.9628230758.

The spelling of 134188493 in words is "one hundred thirty-four million, one hundred eighty-eight thousand, four hundred ninety-three".