1001312452 has 72 divisors (see below), whose sum is σ = 2136214080. Its totient is φ = 408703680.

The previous prime is 1001312447. The next prime is 1001312467. The reversal of 1001312452 is 2542131001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1753327 + ... + 1753897.

It is an arithmetic number, because the mean of its divisors is an integer number (29669640).

Almost surely, 2^1001312452 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 1001312452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068107040).

1001312452 is an abundant number, since it is smaller than the sum of its proper divisors (1134901628).

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

1001312452 is a wasteful number, since it uses less digits than its factorization.

1001312452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001 (or 992 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1001312452 is about 31643.5214854479. The cubic root of 1001312452 is about 1000.4372927472.

Adding to 1001312452 its reverse (2542131001), we get a palindrome (3543443453).

The spelling of 1001312452 in words is "one billion, one million, three hundred twelve thousand, four hundred fifty-two".