201086164 has 6 divisors (see below), whose sum is σ = 351900794. Its totient is φ = 100543080.

The previous prime is 201086131. The next prime is 201086173. The reversal of 201086164 is 461680102.

It can be written as a sum of positive squares in only one way, i.e., 187909264 + 13176900 = 13708^2 + 3630^2 .

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, 25135767 + ... + 25135774.

Almost surely, 2^201086164 is an apocalyptic number.

It is an amenable number.

201086164 is a deficient number, since it is larger than the sum of its proper divisors (150814630).

201086164 is a wasteful number, since it uses less digits than its factorization.

201086164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50271545 (or 50271543 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 201086164 is about 14180.4853231474. The cubic root of 201086164 is about 585.8602912178.

The spelling of 201086164 in words is "two hundred one million, eighty-six thousand, one hundred sixty-four".