145203055 has 16 divisors (see below), whose sum is σ = 176977440. Its totient is φ = 114352128.

The previous prime is 145203053. The next prime is 145203061. The reversal of 145203055 is 550302541.

It is a cyclic number.

It is not a de Polignac number, because 145203055 - 2¹ = 145203053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145203053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 125359 + ... + 126511.

It is an arithmetic number, because the mean of its divisors is an integer number (11061090).

Almost surely, 2^145203055 is an apocalyptic number.

145203055 is a deficient number, since it is larger than the sum of its proper divisors (31774385).

145203055 is a wasteful number, since it uses less digits than its factorization.

145203055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 145203055 is about 12050.0230290236. The cubic root of 145203055 is about 525.6039067235.

Adding to 145203055 its reverse (550302541), we get a palindrome (695505596).

The spelling of 145203055 in words is "one hundred forty-five million, two hundred three thousand, fifty-five".