1005131252 has 6 divisors (see below), whose sum is σ = 1758979698. Its totient is φ = 502565624.

The previous prime is 1005131251. The next prime is 1005131261. The reversal of 1005131252 is 2521315001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 918938596 + 86192656 = 30314^2 + 9284^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005131251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125641403 + ... + 125641410.

It is an arithmetic number, because the mean of its divisors is an integer number (293163283).

Almost surely, 2^1005131252 is an apocalyptic number.

It is an amenable number.

1005131252 is a deficient number, since it is larger than the sum of its proper divisors (753848446).

1005131252 is a wasteful number, since it uses less digits than its factorization.

1005131252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251282817 (or 251282815 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1005131252 is about 31703.8050082321. The cubic root of 1005131252 is about 1001.7075001172.

Adding to 1005131252 its reverse (2521315001), we get a palindrome (3526446253).

The spelling of 1005131252 in words is "one billion, five million, one hundred thirty-one thousand, two hundred fifty-two".