201193525 has 12 divisors (see below), whose sum is σ = 268671172. Its totient is φ = 148573440.

The previous prime is 201193513. The next prime is 201193537. The reversal of 201193525 is 525391102.

It is an interprime number because it is at equal distance from previous prime (201193513) and next prime (201193537).

It can be written as a sum of positive squares in 6 ways, for example, as 21150801 + 180042724 = 4599^2 + 13418^2 .

It is not a de Polignac number, because 201193525 - 2⁵ = 201193493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201193493 and 201193502.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 309204 + ... + 309853.

Almost surely, 2^201193525 is an apocalyptic number.

201193525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

201193525 is a deficient number, since it is larger than the sum of its proper divisors (67477647).

201193525 is a wasteful number, since it uses less digits than its factorization.

201193525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619080 (or 619075 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 201193525 is about 14184.2703372433. The cubic root of 201193525 is about 585.9645373361.

The spelling of 201193525 in words is "two hundred one million, one hundred ninety-three thousand, five hundred twenty-five".