145203 has 8 divisors (see below), whose sum is σ = 200400. Its totient is φ = 93408.

The previous prime is 145193. The next prime is 145207. The reversal of 145203 is 302541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 145203 - 2⁶ = 145139 is a prime.

It is a super-2 number, since 2×145203² = 42167822418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 748 + ... + 921.

It is an arithmetic number, because the mean of its divisors is an integer number (25050).

2¹⁴⁵²⁰³ is an apocalyptic number.

145203 is a deficient number, since it is larger than the sum of its proper divisors (55197).

145203 is a wasteful number, since it uses less digits than its factorization.

145203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 145203 is about 381.0551141239. The cubic root of 145203 is about 52.5603840361.

Adding to 145203 its reverse (302541), we get a palindrome (447744).

The spelling of 145203 in words is "one hundred forty-five thousand, two hundred three".