254102532142549 has 2 divisors, whose sum is σ = 254102532142550. Its totient is φ = 254102532142548.

The previous prime is 254102532142519. The next prime is 254102532142567. The reversal of 254102532142549 is 945241235201452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246597085628100 + 7505446514449 = 15703410^2 + 2739607^2 .

It is a cyclic number.

It is not a de Polignac number, because 254102532142549 - 2¹³ = 254102532134357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254102532142519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127051266071274 + 127051266071275.

It is an arithmetic number, because the mean of its divisors is an integer number (127051266071275).

Almost surely, 2^{254102532142549} is an apocalyptic number.

It is an amenable number.

254102532142549 is a deficient number, since it is larger than the sum of its proper divisors (1).

254102532142549 is an equidigital number, since it uses as much as digits as its factorization.

254102532142549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456000, while the sum is 49.

The spelling of 254102532142549 in words is "two hundred fifty-four trillion, one hundred two billion, five hundred thirty-two million, one hundred forty-two thousand, five hundred forty-nine".