145105055 has 4 divisors (see below), whose sum is σ = 174126072. Its totient is φ = 116084040.

The previous prime is 145105039. The next prime is 145105063. The reversal of 145105055 is 550501541.

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

It is not a de Polignac number, because 145105055 - 2⁴ = 145105039 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 14510501 + ... + 14510510.

It is an arithmetic number, because the mean of its divisors is an integer number (43531518).

Almost surely, 2^145105055 is an apocalyptic number.

145105055 is a deficient number, since it is larger than the sum of its proper divisors (29021017).

145105055 is an equidigital number, since it uses as much as digits as its factorization.

145105055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29021016.

The product of its (nonzero) digits is 2500, while the sum is 26.

The square root of 145105055 is about 12045.9559604043. The cubic root of 145105055 is about 525.4856337865.

Adding to 145105055 its reverse (550501541), we get a palindrome (695606596).

The spelling of 145105055 in words is "one hundred forty-five million, one hundred five thousand, fifty-five".