254421013045109 has 2 divisors, whose sum is σ = 254421013045110. Its totient is φ = 254421013045108.

The previous prime is 254421013045103. The next prime is 254421013045163. The reversal of 254421013045109 is 901540310124452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127225360654084 + 127195652391025 = 11279422^2 + 11278105^2 .

It is a cyclic number.

It is not a de Polignac number, because 254421013045109 - 2³² = 254416718077813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254421013045103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127210506522554 + 127210506522555.

It is an arithmetic number, because the mean of its divisors is an integer number (127210506522555).

Almost surely, 2^{254421013045109} is an apocalyptic number.

It is an amenable number.

254421013045109 is a deficient number, since it is larger than the sum of its proper divisors (1).

254421013045109 is an equidigital number, since it uses as much as digits as its factorization.

254421013045109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 254421013045109 in words is "two hundred fifty-four trillion, four hundred twenty-one billion, thirteen million, forty-five thousand, one hundred nine".