1531885852 has 48 divisors (see below), whose sum is σ = 3139799040. Its totient is φ = 640328832.

The previous prime is 1531885819. The next prime is 1531885897. The reversal of 1531885852 is 2585881351.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 410049 + ... + 413767.

It is an arithmetic number, because the mean of its divisors is an integer number (65412480).

Almost surely, 2^1531885852 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1531885852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569899520).

1531885852 is an abundant number, since it is smaller than the sum of its proper divisors (1607913188).

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

1531885852 is a wasteful number, since it uses less digits than its factorization.

1531885852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4090 (or 4088 counting only the distinct ones).

The product of its digits is 384000, while the sum is 46.

The square root of 1531885852 is about 39139.3133818160. The cubic root of 1531885852 is about 1152.7685913523.

The spelling of 1531885852 in words is "one billion, five hundred thirty-one million, eight hundred eighty-five thousand, eight hundred fifty-two".