203696057 has 8 divisors (see below), whose sum is σ = 216450792. Its totient is φ = 191027200.

The previous prime is 203696041. The next prime is 203696069. The reversal of 203696057 is 750696302.

It can be written as a sum of positive squares in 4 ways, for example, as 85082176 + 118613881 = 9224^2 + 10891^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 203696057 - 2⁴ = 203696041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203696057.

It is not an unprimeable number, because it can be changed into a prime (203696357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16544 + ... + 26097.

It is an arithmetic number, because the mean of its divisors is an integer number (27056349).

Almost surely, 2^203696057 is an apocalyptic number.

It is an amenable number.

203696057 is a deficient number, since it is larger than the sum of its proper divisors (12754735).

203696057 is a wasteful number, since it uses less digits than its factorization.

203696057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42939.

The product of its (nonzero) digits is 68040, while the sum is 38.

The square root of 203696057 is about 14272.2127576631. The cubic root of 203696057 is about 588.3840267122.

The spelling of 203696057 in words is "two hundred three million, six hundred ninety-six thousand, fifty-seven".