1021314253 has 8 divisors (see below), whose sum is σ = 1094421888. Its totient is φ = 949654464.

The previous prime is 1021314247. The next prime is 1021314269. The reversal of 1021314253 is 3524131201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021314253 - 2⁵ = 1021314221 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 (1021324253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360501 + ... + 363322.

It is an arithmetic number, because the mean of its divisors is an integer number (136802736).

Almost surely, 2^1021314253 is an apocalyptic number.

It is an amenable number.

1021314253 is a deficient number, since it is larger than the sum of its proper divisors (73107635).

1021314253 is an equidigital number, since it uses as much as digits as its factorization.

1021314253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723923.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1021314253 is about 31958.0076506656. The cubic root of 1021314253 is about 1007.0548628672.

Adding to 1021314253 its reverse (3524131201), we get a palindrome (4545445454).

The spelling of 1021314253 in words is "one billion, twenty-one million, three hundred fourteen thousand, two hundred fifty-three".