203145132 has 24 divisors (see below), whose sum is σ = 477148672. Its totient is φ = 67266000.

The previous prime is 203145127. The next prime is 203145161. The reversal of 203145132 is 231541302.

It is a Smith number, since the sum of its digits (21) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 203145099 and 203145108.

It is an unprimeable number.

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, 54244 + ... + 57867.

Almost surely, 2^203145132 is an apocalyptic number.

It is an amenable number.

203145132 is an abundant number, since it is smaller than the sum of its proper divisors (274003540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203145132 is a wasteful number, since it uses less digits than its factorization.

203145132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112269 (or 112267 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 203145132 is about 14252.8990735218. The cubic root of 203145132 is about 587.8530916250.

Adding to 203145132 its reverse (231541302), we get a palindrome (434686434).

The spelling of 203145132 in words is "two hundred three million, one hundred forty-five thousand, one hundred thirty-two".