210453023 has 4 divisors (see below), whose sum is σ = 229585128. Its totient is φ = 191320920.

The previous prime is 210453007. The next prime is 210453031. The reversal of 210453023 is 320354012.

It is a happy number.

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 210453023 - 2⁴ = 210453007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210452986 and 210453004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210453053) 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 3 ways as a sum of consecutive naturals, for example, 9566036 + ... + 9566057.

It is an arithmetic number, because the mean of its divisors is an integer number (57396282).

Almost surely, 2^210453023 is an apocalyptic number.

210453023 is a deficient number, since it is larger than the sum of its proper divisors (19132105).

210453023 is a wasteful number, since it uses less digits than its factorization.

210453023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19132104.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 210453023 is about 14506.9991038809. Note that the first 3 decimals coincide. The cubic root of 210453023 is about 594.8193062875.

The spelling of 210453023 in words is "two hundred ten million, four hundred fifty-three thousand, twenty-three".