421053 has 4 divisors (see below), whose sum is σ = 561408. Its totient is φ = 280700.

The previous prime is 421049. The next prime is 421079. The reversal of 421053 is 350124.

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 421053 - 2² = 421049 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421033) 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, 70173 + ... + 70178.

It is an arithmetic number, because the mean of its divisors is an integer number (140352).

2⁴²¹⁰⁵³ is an apocalyptic number.

It is an amenable number.

421053 is a deficient number, since it is larger than the sum of its proper divisors (140355).

421053 is a wasteful number, since it uses less digits than its factorization.

421053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140354.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 421053 is about 648.8859684105. The cubic root of 421053 is about 74.9512572176.

Adding to 421053 its reverse (350124), we get a palindrome (771177).

The spelling of 421053 in words is "four hundred twenty-one thousand, fifty-three".