201036557 has 2 divisors, whose sum is σ = 201036558. Its totient is φ = 201036556.

The previous prime is 201036551. The next prime is 201036559. The reversal of 201036557 is 755630102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198415396 + 2621161 = 14086^2 + 1619^2 .

It is a cyclic number.

It is not a de Polignac number, because 201036557 - 2¹⁰ = 201035533 is a prime.

Together with 201036559, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201036551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100518278 + 100518279.

It is an arithmetic number, because the mean of its divisors is an integer number (100518279).

Almost surely, 2^201036557 is an apocalyptic number.

It is an amenable number.

201036557 is a deficient number, since it is larger than the sum of its proper divisors (1).

201036557 is an equidigital number, since it uses as much as digits as its factorization.

201036557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 201036557 is about 14178.7360861256. The cubic root of 201036557 is about 585.8121109401.

Adding to 201036557 its reverse (755630102), we get a palindrome (956666659).

The spelling of 201036557 in words is "two hundred one million, thirty-six thousand, five hundred fifty-seven".