210253089 has 4 divisors (see below), whose sum is σ = 280337456. Its totient is φ = 140168724.

The previous prime is 210253063. The next prime is 210253117. The reversal of 210253089 is 980352012.

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.

It is not a de Polignac number, because 210253089 - 2¹² = 210248993 is a prime.

It is a super-4 number, since 4×210253089⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210252089) 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, 35042179 + ... + 35042184.

It is an arithmetic number, because the mean of its divisors is an integer number (70084364).

Almost surely, 2^210253089 is an apocalyptic number.

It is an amenable number.

210253089 is a deficient number, since it is larger than the sum of its proper divisors (70084367).

210253089 is an equidigital number, since it uses as much as digits as its factorization.

210253089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70084366.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 210253089 is about 14500.1065168501. The cubic root of 210253089 is about 594.6308837415.

The spelling of 210253089 in words is "two hundred ten million, two hundred fifty-three thousand, eighty-nine".