203154140 has 48 divisors (see below), whose sum is σ = 488409600. Its totient is φ = 69532992.

The previous prime is 203154121. The next prime is 203154157. The reversal of 203154140 is 41451302.

203154140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127871 + ... + 129449.

It is an arithmetic number, because the mean of its divisors is an integer number (10175200).

Almost surely, 2^203154140 is an apocalyptic number.

203154140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203154140 is an abundant number, since it is smaller than the sum of its proper divisors (285255460).

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

203154140 is a wasteful number, since it uses less digits than its factorization.

203154140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2514 (or 2512 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 203154140 is about 14253.2150759048. The cubic root of 203154140 is about 587.8617804908.

The spelling of 203154140 in words is "two hundred three million, one hundred fifty-four thousand, one hundred forty".