201225513 has 4 divisors (see below), whose sum is σ = 268300688. Its totient is φ = 134150340.

The previous prime is 201225503. The next prime is 201225547. The reversal of 201225513 is 315522102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 201225513 - 2¹² = 201221417 is a prime.

It is a super-2 number, since 2×201225513² = 80983414164226338, which contains 22 as substring.

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 201225513.

It is not an unprimeable number, because it can be changed into a prime (201225503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33537583 + ... + 33537588.

It is an arithmetic number, because the mean of its divisors is an integer number (67075172).

Almost surely, 2^201225513 is an apocalyptic number.

It is an amenable number.

201225513 is a deficient number, since it is larger than the sum of its proper divisors (67075175).

201225513 is an equidigital number, since it uses as much as digits as its factorization.

201225513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67075174.

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

The square root of 201225513 is about 14185.3978795098. The cubic root of 201225513 is about 585.9955900921.

Adding to 201225513 its reverse (315522102), we get a palindrome (516747615).

The spelling of 201225513 in words is "two hundred one million, two hundred twenty-five thousand, five hundred thirteen".