210253423 has 4 divisors (see below), whose sum is σ = 210306240. Its totient is φ = 210200608.

The previous prime is 210253391. The next prime is 210253427. The reversal of 210253423 is 324352012.

210253423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 210253423 - 2⁵ = 210253391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210253394 and 210253403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210253427) 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, 19903 + ... + 28576.

It is an arithmetic number, because the mean of its divisors is an integer number (52576560).

Almost surely, 2^210253423 is an apocalyptic number.

210253423 is a deficient number, since it is larger than the sum of its proper divisors (52817).

210253423 is an equidigital number, since it uses as much as digits as its factorization.

210253423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52816.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 210253423 is about 14500.1180340023. The cubic root of 210253423 is about 594.6311986106.

The spelling of 210253423 in words is "two hundred ten million, two hundred fifty-three thousand, four hundred twenty-three".