2301521532 has 24 divisors (see below), whose sum is σ = 5403167616. Its totient is φ = 762466608.

The previous prime is 2301521531. The next prime is 2301521539. The reversal of 2301521532 is 2351251032.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301521531) 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 7 ways as a sum of consecutive naturals, for example, 586368 + ... + 590279.

It is an arithmetic number, because the mean of its divisors is an integer number (225131984).

Almost surely, 2^2301521532 is an apocalyptic number.

It is an amenable number.

2301521532 is an abundant number, since it is smaller than the sum of its proper divisors (3101646084).

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

2301521532 is a wasteful number, since it uses less digits than its factorization.

2301521532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1176817 (or 1176815 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2301521532 is about 47974.1756781709. The cubic root of 2301521532 is about 1320.2971346704.

Adding to 2301521532 its reverse (2351251032), we get a palindrome (4652772564).

The spelling of 2301521532 in words is "two billion, three hundred one million, five hundred twenty-one thousand, five hundred thirty-two".