1315545252 has 96 divisors (see below), whose sum is σ = 3560374272. Its totient is φ = 370313856.

The previous prime is 1315545251. The next prime is 1315545271. The reversal of 1315545252 is 2525455131.

It is not an unprimeable number, because it can be changed into a prime (1315545251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3313518 + ... + 3313914.

It is an arithmetic number, because the mean of its divisors is an integer number (37087232).

Almost surely, 2^1315545252 is an apocalyptic number.

1315545252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1315545252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1780187136).

1315545252 is an abundant number, since it is smaller than the sum of its proper divisors (2244829020).

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

1315545252 is a wasteful number, since it uses less digits than its factorization.

1315545252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897 (or 895 counting only the distinct ones).

The product of its digits is 30000, while the sum is 33.

The square root of 1315545252 is about 36270.4459856782. The cubic root of 1315545252 is about 1095.7259080257.

The spelling of 1315545252 in words is "one billion, three hundred fifteen million, five hundred forty-five thousand, two hundred fifty-two".