1512345252 has 72 divisors (see below), whose sum is σ = 3956934240. Its totient is φ = 445847040.

The previous prime is 1512345251. The next prime is 1512345257. The reversal of 1512345252 is 2525432151.

It is a super-2 number, since 2×1512345252² = 4574376322493887008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1512345251) 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 23 ways as a sum of consecutive naturals, for example, 176524 + ... + 184892.

It is an arithmetic number, because the mean of its divisors is an integer number (54957420).

Almost surely, 2^1512345252 is an apocalyptic number.

1512345252 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 1512345252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1978467120).

1512345252 is an abundant number, since it is smaller than the sum of its proper divisors (2444588988).

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

1512345252 is a wasteful number, since it uses less digits than its factorization.

1512345252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8461 (or 8422 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 1512345252 is about 38888.8833987298. The cubic root of 1512345252 is about 1147.8460632420.

The spelling of 1512345252 in words is "one billion, five hundred twelve million, three hundred forty-five thousand, two hundred fifty-two".