203450149 has 8 divisors (see below), whose sum is σ = 232619840. Its totient is φ = 174306816.

The previous prime is 203450141. The next prime is 203450171. The reversal of 203450149 is 941054302.

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 203450149 - 2³ = 203450141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203450141) 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 7 ways as a sum of consecutive naturals, for example, 14437 + ... + 24805.

It is an arithmetic number, because the mean of its divisors is an integer number (29077480).

Almost surely, 2^203450149 is an apocalyptic number.

It is an amenable number.

203450149 is a deficient number, since it is larger than the sum of its proper divisors (29169691).

203450149 is a wasteful number, since it uses less digits than its factorization.

203450149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13179.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 203450149 is about 14263.5952340215. The cubic root of 203450149 is about 588.1471597441.

The spelling of 203450149 in words is "two hundred three million, four hundred fifty thousand, one hundred forty-nine".