203255421 has 8 divisors (see below), whose sum is σ = 275052384. Its totient is φ = 133481040.

The previous prime is 203255333. The next prime is 203255431. The reversal of 203255421 is 124552302.

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

It is not a de Polignac number, because 203255421 - 2¹³ = 203247229 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 203255391 and 203255400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203255431) 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, 505410 + ... + 505811.

It is an arithmetic number, because the mean of its divisors is an integer number (34381548).

Almost surely, 2^203255421 is an apocalyptic number.

It is an amenable number.

203255421 is a deficient number, since it is larger than the sum of its proper divisors (71796963).

203255421 is a wasteful number, since it uses less digits than its factorization.

203255421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011291.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 203255421 is about 14256.7675508861. The cubic root of 203255421 is about 587.9594556477.

The spelling of 203255421 in words is "two hundred three million, two hundred fifty-five thousand, four hundred twenty-one".