202140232254 has 24 divisors (see below), whose sum is σ = 438004540272. Its totient is φ = 67374840960.

The previous prime is 202140232253. The next prime is 202140232289. The reversal of 202140232254 is 452232041202.

202140232254 is a `hidden beast` number, since 2 + 0 + 2 + 1 + 402 + 3 + 2 + 254 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202140232253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194707 + ... + 664974.

It is an arithmetic number, because the mean of its divisors is an integer number (18250189178).

Almost surely, 2^202140232254 is an apocalyptic number.

202140232254 is an abundant number, since it is smaller than the sum of its proper divisors (235864308018).

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

202140232254 is a wasteful number, since it uses less digits than its factorization.

202140232254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872752 (or 872749 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 202140232254 its reverse (452232041202), we get a palindrome (654372273456).

The spelling of 202140232254 in words is "two hundred two billion, one hundred forty million, two hundred thirty-two thousand, two hundred fifty-four".