134197523 has 2 divisors, whose sum is σ = 134197524. Its totient is φ = 134197522.

The previous prime is 134197519. The next prime is 134197559. The reversal of 134197523 is 325791431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134197523 - 2² = 134197519 is a prime.

It is a super-3 number, since 3×134197523³ (a number of 25 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (134197573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67098761 + 67098762.

It is an arithmetic number, because the mean of its divisors is an integer number (67098762).

Almost surely, 2^134197523 is an apocalyptic number.

134197523 is a deficient number, since it is larger than the sum of its proper divisors (1).

134197523 is an equidigital number, since it uses as much as digits as its factorization.

134197523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 35.

The square root of 134197523 is about 11584.3654552159. The cubic root of 134197523 is about 511.9743067246.

The spelling of 134197523 in words is "one hundred thirty-four million, one hundred ninety-seven thousand, five hundred twenty-three".