145545203 has 8 divisors (see below), whose sum is σ = 149364096. Its totient is φ = 141739200.

The previous prime is 145545199. The next prime is 145545209. The reversal of 145545203 is 302545541.

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

It is a cyclic number.

It is not a de Polignac number, because 145545203 - 2² = 145545199 is a prime.

It is a super-2 number, since 2×145545203² = 42366812232622418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145545209) 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 in 7 ways as a sum of consecutive naturals, for example, 22238 + ... + 28028.

It is an arithmetic number, because the mean of its divisors is an integer number (18670512).

Almost surely, 2^145545203 is an apocalyptic number.

145545203 is a deficient number, since it is larger than the sum of its proper divisors (3818893).

145545203 is an equidigital number, since it uses as much as digits as its factorization.

145545203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 145545203 is about 12064.2116609416. The cubic root of 145545203 is about 526.0164170060.

The spelling of 145545203 in words is "one hundred forty-five million, five hundred forty-five thousand, two hundred three".