126564026 has 4 divisors (see below), whose sum is σ = 189846042. Its totient is φ = 63282012.

The previous prime is 126564023. The next prime is 126564037. The reversal of 126564026 is 620465621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 620465621 = 167 ⋅3715363.

It can be written as a sum of positive squares in only one way, i.e., 126540001 + 24025 = 11249^2 + 155^2 .

It is a junction number, because it is equal to n+sod(n) for n = 126563983 and 126564001.

It is not an unprimeable number, because it can be changed into a prime (126564023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31641005 + ... + 31641008.

Almost surely, 2^126564026 is an apocalyptic number.

126564026 is a deficient number, since it is larger than the sum of its proper divisors (63282016).

126564026 is an equidigital number, since it uses as much as digits as its factorization.

126564026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63282015.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 126564026 is about 11250.0678220178. The cubic root of 126564026 is about 502.0767304393.

The spelling of 126564026 in words is "one hundred twenty-six million, five hundred sixty-four thousand, twenty-six".