201836564 has 6 divisors (see below), whose sum is σ = 353213994. Its totient is φ = 100918280.

The previous prime is 201836519. The next prime is 201836573. The reversal of 201836564 is 465638102.

It can be written as a sum of positive squares in only one way, i.e., 182034064 + 19802500 = 13492^2 + 4450^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25229567 + ... + 25229574.

It is an arithmetic number, because the mean of its divisors is an integer number (58868999).

Almost surely, 2^201836564 is an apocalyptic number.

It is an amenable number.

201836564 is a deficient number, since it is larger than the sum of its proper divisors (151377430).

201836564 is a wasteful number, since it uses less digits than its factorization.

201836564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50459145 (or 50459143 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 201836564 is about 14206.9195816686. The cubic root of 201836564 is about 586.5881447651.

The spelling of 201836564 in words is "two hundred one million, eight hundred thirty-six thousand, five hundred sixty-four".