3138811452 has 96 divisors (see below), whose sum is σ = 9431331840. Its totient is φ = 884157120.

The previous prime is 3138811447. The next prime is 3138811463. The reversal of 3138811452 is 2541188313.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24438 + ... + 82914.

It is an arithmetic number, because the mean of its divisors is an integer number (98243040).

Almost surely, 2^3138811452 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 3138811452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4715665920).

3138811452 is an abundant number, since it is smaller than the sum of its proper divisors (6292520388).

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

3138811452 is a wasteful number, since it uses less digits than its factorization.

3138811452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58568 (or 58560 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 3138811452 is about 56025.0966264227. The cubic root of 3138811452 is about 1464.1595667248.

Adding to 3138811452 its reverse (2541188313), we get a palindrome (5679999765).

The spelling of 3138811452 in words is "three billion, one hundred thirty-eight million, eight hundred eleven thousand, four hundred fifty-two".