203868534 has 8 divisors (see below), whose sum is σ = 407737080. Its totient is φ = 67956176.

The previous prime is 203868517. The next prime is 203868551. The reversal of 203868534 is 435868302.

203868534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (203868517) and next prime (203868551).

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

203868534 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 203868492 and 203868501.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16989039 + ... + 16989050.

It is an arithmetic number, because the mean of its divisors is an integer number (50967135).

Almost surely, 2^203868534 is an apocalyptic number.

203868534 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

203868534 is a wasteful number, since it uses less digits than its factorization.

203868534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33978094.

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 203868534 is about 14278.2538848418. The cubic root of 203868534 is about 588.5500487153.

It can be divided in two parts, 203868 and 534, that added together give a palindrome (204402).

The spelling of 203868534 in words is "two hundred three million, eight hundred sixty-eight thousand, five hundred thirty-four".