145053203 has 16 divisors (see below), whose sum is σ = 156050496. Its totient is φ = 134492160.

The previous prime is 145053193. The next prime is 145053229. The reversal of 145053203 is 302350541.

It is a cyclic number.

It is not a de Polignac number, because 145053203 - 2¹⁰ = 145052179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145253203) 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, 181601 + ... + 182397.

It is an arithmetic number, because the mean of its divisors is an integer number (9753156).

Almost surely, 2^145053203 is an apocalyptic number.

145053203 is a deficient number, since it is larger than the sum of its proper divisors (10997293).

145053203 is a wasteful number, since it uses less digits than its factorization.

145053203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054.

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

The square root of 145053203 is about 12043.8035105194. The cubic root of 145053203 is about 525.4230337912.

The spelling of 145053203 in words is "one hundred forty-five million, fifty-three thousand, two hundred three".