126545163 has 4 divisors (see below), whose sum is σ = 168726888. Its totient is φ = 84363440.

The previous prime is 126545137. The next prime is 126545179. The reversal of 126545163 is 361545621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361545621 = 3 ⋅120515207.

It is a cyclic number.

It is not a de Polignac number, because 126545163 - 2⁸ = 126544907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126545063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21090858 + ... + 21090863.

It is an arithmetic number, because the mean of its divisors is an integer number (42181722).

Almost surely, 2^126545163 is an apocalyptic number.

126545163 is a deficient number, since it is larger than the sum of its proper divisors (42181725).

126545163 is an equidigital number, since it uses as much as digits as its factorization.

126545163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42181724.

The product of its digits is 21600, while the sum is 33.

The square root of 126545163 is about 11249.2294402772. The cubic root of 126545163 is about 502.0517861635.

The spelling of 126545163 in words is "one hundred twenty-six million, five hundred forty-five thousand, one hundred sixty-three".