255100145 has 4 divisors (see below), whose sum is σ = 306120180. Its totient is φ = 204080112.

The previous prime is 255100117. The next prime is 255100169. The reversal of 255100145 is 541001552.

It is a happy number.

255100145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 41589601 + 213510544 = 6449^2 + 14612^2 .

It is a cyclic number.

It is not a de Polignac number, because 255100145 - 2⁶ = 255100081 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 255100145.

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, 25510010 + ... + 25510019.

It is an arithmetic number, because the mean of its divisors is an integer number (76530045).

Almost surely, 2^255100145 is an apocalyptic number.

It is an amenable number.

255100145 is a deficient number, since it is larger than the sum of its proper divisors (51020035).

255100145 is an equidigital number, since it uses as much as digits as its factorization.

255100145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51020034.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 255100145 is about 15971.8547764497. The cubic root of 255100145 is about 634.2155730153.

Adding to 255100145 its reverse (541001552), we get a palindrome (796101697).

The spelling of 255100145 in words is "two hundred fifty-five million, one hundred thousand, one hundred forty-five".