255342105145 has 4 divisors (see below), whose sum is σ = 306410526180. Its totient is φ = 204273684112.

The previous prime is 255342105119. The next prime is 255342105181. The reversal of 255342105145 is 541501243552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 187498526121 + 67843579024 = 433011^2 + 260468^2 .

It is a cyclic number.

It is not a de Polignac number, because 255342105145 - 2¹³ = 255342096953 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25534210510 + ... + 25534210519.

It is an arithmetic number, because the mean of its divisors is an integer number (76602631545).

Almost surely, 2^255342105145 is an apocalyptic number.

It is an amenable number.

255342105145 is a deficient number, since it is larger than the sum of its proper divisors (51068421035).

255342105145 is an equidigital number, since it uses as much as digits as its factorization.

255342105145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51068421034.

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 255342105145 its reverse (541501243552), we get a palindrome (796843348697).

The spelling of 255342105145 in words is "two hundred fifty-five billion, three hundred forty-two million, one hundred five thousand, one hundred forty-five".