1053973421 has 4 divisors (see below), whose sum is σ = 1054470144. Its totient is φ = 1053476700.

The previous prime is 1053973411. The next prime is 1053973439. The reversal of 1053973421 is 1243793501.

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.

It is a cyclic number.

It is not a de Polignac number, because 1053973421 - 2¹⁸ = 1053711277 is a prime.

It is a super-2 number, since 2×1053973421² = 2221719944348886482, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1053973411) 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, 245165 + ... + 249426.

It is an arithmetic number, because the mean of its divisors is an integer number (263617536).

Almost surely, 2^1053973421 is an apocalyptic number.

It is an amenable number.

1053973421 is a deficient number, since it is larger than the sum of its proper divisors (496723).

1053973421 is an equidigital number, since it uses as much as digits as its factorization.

1053973421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496722.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 1053973421 is about 32464.9568150029. The cubic root of 1053973421 is about 1017.6768288924.

The spelling of 1053973421 in words is "one billion, fifty-three million, nine hundred seventy-three thousand, four hundred twenty-one".