145203053 has 2 divisors, whose sum is σ = 145203054. Its totient is φ = 145203052.

The previous prime is 145203049. The next prime is 145203061. The reversal of 145203053 is 350302541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125507209 + 19695844 = 11203^2 + 4438^2 .

It is a cyclic number.

It is not a de Polignac number, because 145203053 - 2² = 145203049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145203043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72601526 + 72601527.

It is an arithmetic number, because the mean of its divisors is an integer number (72601527).

Almost surely, 2^145203053 is an apocalyptic number.

It is an amenable number.

145203053 is a deficient number, since it is larger than the sum of its proper divisors (1).

145203053 is an equidigital number, since it uses as much as digits as its factorization.

145203053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 145203053 is about 12050.0229460362. The cubic root of 145203053 is about 525.6039043103.

Adding to 145203053 its reverse (350302541), we get a palindrome (495505594).

The spelling of 145203053 in words is "one hundred forty-five million, two hundred three thousand, fifty-three".