1201065525 has 72 divisors (see below), whose sum is σ = 2470422240. Its totient is φ = 551664000.

The previous prime is 1201065511. The next prime is 1201065529. The reversal of 1201065525 is 5255601021.

1201065525 is a `hidden beast` number, since 1 + 2 + 0 + 1 + 0 + 655 + 2 + 5 = 666.

It is not a de Polignac number, because 1201065525 - 2⁶ = 1201065461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201065529) 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 71 ways as a sum of consecutive naturals, for example, 34255 + ... + 59795.

It is an arithmetic number, because the mean of its divisors is an integer number (34311420).

Almost surely, 2^1201065525 is an apocalyptic number.

1201065525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1201065525 is an abundant number, since it is smaller than the sum of its proper divisors (1269356715).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1201065525 is a wasteful number, since it uses less digits than its factorization.

1201065525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25587 (or 25579 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1201065525 is about 34656.3922675168. The cubic root of 1201065525 is about 1062.9730009335.

Adding to 1201065525 its reverse (5255601021), we get a palindrome (6456666546).

The spelling of 1201065525 in words is "one billion, two hundred one million, sixty-five thousand, five hundred twenty-five".