201125523 has 8 divisors (see below), whose sum is σ = 270932368. Its totient is φ = 132701184.

The previous prime is 201125503. The next prime is 201125531. The reversal of 201125523 is 325521102.

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

It is not a de Polignac number, because 201125523 - 2¹⁰ = 201124499 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 201125523.

It is not an unprimeable number, because it can be changed into a prime (201125503) 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 7 ways as a sum of consecutive naturals, for example, 345286 + ... + 345867.

It is an arithmetic number, because the mean of its divisors is an integer number (33866546).

Almost surely, 2^201125523 is an apocalyptic number.

201125523 is a deficient number, since it is larger than the sum of its proper divisors (69806845).

201125523 is an equidigital number, since it uses as much as digits as its factorization.

201125523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691253.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 201125523 is about 14181.8730427261. The cubic root of 201125523 is about 585.8985125959.

Adding to 201125523 its reverse (325521102), we get a palindrome (526646625).

The spelling of 201125523 in words is "two hundred one million, one hundred twenty-five thousand, five hundred twenty-three".