1421130253 has 4 divisors (see below), whose sum is σ = 1422072288. Its totient is φ = 1420188220.

The previous prime is 1421130209. The next prime is 1421130257. The reversal of 1421130253 is 3520311241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3520311241 = 19 ⋅185279539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1421130253 is a prime.

It is a super-2 number, since 2×1421130253² = 4039222391983688018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421130257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 468751 + ... + 471772.

It is an arithmetic number, because the mean of its divisors is an integer number (355518072).

Almost surely, 2^1421130253 is an apocalyptic number.

It is an amenable number.

1421130253 is a deficient number, since it is larger than the sum of its proper divisors (942035).

1421130253 is an equidigital number, since it uses as much as digits as its factorization.

1421130253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942034.

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

The square root of 1421130253 is about 37697.8812799871. The cubic root of 1421130253 is about 1124.2890000926.

Adding to 1421130253 its reverse (3520311241), we get a palindrome (4941441494).

The spelling of 1421130253 in words is "one billion, four hundred twenty-one million, one hundred thirty thousand, two hundred fifty-three".