201053523 has 16 divisors (see below), whose sum is σ = 300347136. Its totient is φ = 118556640.

The previous prime is 201053519. The next prime is 201053551. The reversal of 201053523 is 325350102.

It is not a de Polignac number, because 201053523 - 2² = 201053519 is a prime.

It is a super-2 number, since 2×201053523² = 80845038221423058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201053523.

It is not an unprimeable number, because it can be changed into a prime (201053513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81111 + ... + 83552.

It is an arithmetic number, because the mean of its divisors is an integer number (18771696).

Almost surely, 2^201053523 is an apocalyptic number.

201053523 is a deficient number, since it is larger than the sum of its proper divisors (99293613).

201053523 is a wasteful number, since it uses less digits than its factorization.

201053523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164714.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 201053523 is about 14179.3343637845. The cubic root of 201053523 is about 585.8285898812.

The spelling of 201053523 in words is "two hundred one million, fifty-three thousand, five hundred twenty-three".