254621623141 has 2 divisors, whose sum is σ = 254621623142. Its totient is φ = 254621623140.

The previous prime is 254621623133. The next prime is 254621623177. The reversal of 254621623141 is 141326126452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181543314241 + 73078308900 = 426079^2 + 270330^2 .

It is a cyclic number.

It is not a de Polignac number, because 254621623141 - 2³ = 254621623133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254621623141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254621624141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127310811570 + 127310811571.

It is an arithmetic number, because the mean of its divisors is an integer number (127310811571).

Almost surely, 2^254621623141 is an apocalyptic number.

It is an amenable number.

254621623141 is a deficient number, since it is larger than the sum of its proper divisors (1).

254621623141 is an equidigital number, since it uses as much as digits as its factorization.

254621623141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

Adding to 254621623141 its reverse (141326126452), we get a palindrome (395947749593).

The spelling of 254621623141 in words is "two hundred fifty-four billion, six hundred twenty-one million, six hundred twenty-three thousand, one hundred forty-one".