1461215252 has 12 divisors (see below), whose sum is σ = 2922430560. Its totient is φ = 626235096.

The previous prime is 1461215251. The next prime is 1461215269. The reversal of 1461215252 is 2525121641.

1461215252 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1461215251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26093102 + ... + 26093157.

It is an arithmetic number, because the mean of its divisors is an integer number (243535880).

Almost surely, 2^1461215252 is an apocalyptic number.

It is an amenable number.

1461215252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1461215252 is a wasteful number, since it uses less digits than its factorization.

1461215252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52186270 (or 52186268 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 1461215252 is about 38225.8453405546. The cubic root of 1461215252 is about 1134.7618645607.

Adding to 1461215252 its reverse (2525121641), we get a palindrome (3986336893).

The spelling of 1461215252 in words is "one billion, four hundred sixty-one million, two hundred fifteen thousand, two hundred fifty-two".