1200513525 has 12 divisors (see below), whose sum is σ = 1984849152. Its totient is φ = 640273840.

The previous prime is 1200513521. The next prime is 1200513557. The reversal of 1200513525 is 5253150021.

It is a happy number.

It is not a de Polignac number, because 1200513525 - 2² = 1200513521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1200513495 and 1200513504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200513521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8003349 + ... + 8003498.

It is an arithmetic number, because the mean of its divisors is an integer number (165404096).

Almost surely, 2^1200513525 is an apocalyptic number.

1200513525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1200513525 is a deficient number, since it is larger than the sum of its proper divisors (784335627).

1200513525 is a wasteful number, since it uses less digits than its factorization.

1200513525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16006860 (or 16006855 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1200513525 is about 34648.4274534935. The cubic root of 1200513525 is about 1062.8101313821.

Adding to 1200513525 its reverse (5253150021), we get a palindrome (6453663546).

The spelling of 1200513525 in words is "one billion, two hundred million, five hundred thirteen thousand, five hundred twenty-five".