203399534 has 32 divisors (see below), whose sum is σ = 345461760. Its totient is φ = 89112672.

The previous prime is 203399527. The next prime is 203399549. The reversal of 203399534 is 435993302.

203399534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 81899 + ... + 84345.

It is an arithmetic number, because the mean of its divisors is an integer number (10795680).

Almost surely, 2^203399534 is an apocalyptic number.

203399534 is a deficient number, since it is larger than the sum of its proper divisors (142062226).

203399534 is a wasteful number, since it uses less digits than its factorization.

203399534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624.

The product of its (nonzero) digits is 87480, while the sum is 38.

The square root of 203399534 is about 14261.8208514902. The cubic root of 203399534 is about 588.0983819678.

The spelling of 203399534 in words is "two hundred three million, three hundred ninety-nine thousand, five hundred thirty-four".