126162045403 has 4 divisors (see below), whose sum is σ = 128542461408. Its totient is φ = 123781629400.

The previous prime is 126162045391. The next prime is 126162045437. The reversal of 126162045403 is 304540261621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304540261621 = 6359 ⋅47891219.

It is a cyclic number.

It is not a de Polignac number, because 126162045403 - 2²¹ = 126159948251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126162048403) 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, 1190207923 + ... + 1190208028.

It is an arithmetic number, because the mean of its divisors is an integer number (32135615352).

Almost surely, 2^126162045403 is an apocalyptic number.

126162045403 is a deficient number, since it is larger than the sum of its proper divisors (2380416005).

126162045403 is an equidigital number, since it uses as much as digits as its factorization.

126162045403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2380416004.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 126162045403 in words is "one hundred twenty-six billion, one hundred sixty-two million, forty-five thousand, four hundred three".