254226436161 has 4 divisors (see below), whose sum is σ = 338968581552. Its totient is φ = 169484290772.

The previous prime is 254226436159. The next prime is 254226436171. The reversal of 254226436161 is 161634622452.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 254226436161 - 2¹ = 254226436159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (254226436111) 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, 42371072691 + ... + 42371072696.

It is an arithmetic number, because the mean of its divisors is an integer number (84742145388).

Almost surely, 2^254226436161 is an apocalyptic number.

It is an amenable number.

254226436161 is a deficient number, since it is larger than the sum of its proper divisors (84742145391).

254226436161 is an equidigital number, since it uses as much as digits as its factorization.

254226436161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84742145390.

The product of its digits is 414720, while the sum is 42.

The spelling of 254226436161 in words is "two hundred fifty-four billion, two hundred twenty-six million, four hundred thirty-six thousand, one hundred sixty-one".