3151785252 has 216 divisors, whose sum is σ = 9713383680. Its totient is φ = 791683200.

The previous prime is 3151785239. The next prime is 3151785253. The reversal of 3151785252 is 2525871513.

It is a self number, because there is not a number n which added to its sum of digits gives 3151785252.

It is not an unprimeable number, because it can be changed into a prime (3151785253) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2204874 + ... + 2206302.

Almost surely, 2^3151785252 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 3151785252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4856691840).

3151785252 is an abundant number, since it is smaller than the sum of its proper divisors (6561598428).

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

3151785252 is a wasteful number, since it uses less digits than its factorization.

3151785252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503 (or 1483 counting only the distinct ones).

The product of its digits is 84000, while the sum is 39.

The square root of 3151785252 is about 56140.7628377100. The cubic root of 3151785252 is about 1466.1740873638.

The spelling of 3151785252 in words is "three billion, one hundred fifty-one million, seven hundred eighty-five thousand, two hundred fifty-two".