203040054 has 32 divisors (see below), whose sum is σ = 515658240. Its totient is φ = 58011336.

The previous prime is 203040041. The next prime is 203040059. The reversal of 203040054 is 450040302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203040059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 268194 + ... + 268949.

It is an arithmetic number, because the mean of its divisors is an integer number (16114320).

Almost surely, 2^203040054 is an apocalyptic number.

203040054 is an abundant number, since it is smaller than the sum of its proper divisors (312618186).

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

203040054 is a wasteful number, since it uses less digits than its factorization.

203040054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537161 (or 537155 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 203040054 is about 14249.2123992872. The cubic root of 203040054 is about 587.7517173350.

Adding to 203040054 its reverse (450040302), we get a palindrome (653080356).

The spelling of 203040054 in words is "two hundred three million, forty thousand, fifty-four".