145303201 has 4 divisors (see below), whose sum is σ = 145374912. Its totient is φ = 145231492.

The previous prime is 145303189. The next prime is 145303229. The reversal of 145303201 is 102303541.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 145303201 - 2¹¹ = 145301153 is a prime.

It is a super-2 number, since 2×145303201² = 42226040441692802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145303261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32725 + ... + 36898.

It is an arithmetic number, because the mean of its divisors is an integer number (36343728).

Almost surely, 2^145303201 is an apocalyptic number.

It is an amenable number.

145303201 is a deficient number, since it is larger than the sum of its proper divisors (71711).

145303201 is an equidigital number, since it uses as much as digits as its factorization.

145303201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71710.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 145303201 is about 12054.1777405180. The cubic root of 145303201 is about 525.7247146323.

Adding to 145303201 its reverse (102303541), we get a palindrome (247606742).

The spelling of 145303201 in words is "one hundred forty-five million, three hundred three thousand, two hundred one".