1001346253 has 4 divisors (see below), whose sum is σ = 1001541148. Its totient is φ = 1001151360.

The previous prime is 1001346211. The next prime is 1001346319. The reversal of 1001346253 is 3526431001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 365650884 + 635695369 = 19122^2 + 25213^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001346253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001376253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89526 + ... + 100087.

It is an arithmetic number, because the mean of its divisors is an integer number (250385287).

Almost surely, 2^1001346253 is an apocalyptic number.

It is an amenable number.

1001346253 is a deficient number, since it is larger than the sum of its proper divisors (194895).

1001346253 is an equidigital number, since it uses as much as digits as its factorization.

1001346253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194894.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1001346253 is about 31644.0555713075. The cubic root of 1001346253 is about 1000.4485497730.

Adding to 1001346253 its reverse (3526431001), we get a palindrome (4527777254).

The spelling of 1001346253 in words is "one billion, one million, three hundred forty-six thousand, two hundred fifty-three".