210189733 has 6 divisors (see below), whose sum is σ = 226414482. Its totient is φ = 193973040.

The previous prime is 210189701. The next prime is 210189737. The reversal of 210189733 is 337981012.

It can be written as a sum of positive squares in 3 ways, for example, as 23648769 + 186540964 = 4863^2 + 13658^2 .

It is not a de Polignac number, because 210189733 - 2⁵ = 210189701 is a prime.

It is a super-2 number, since 2×210189733² = 88359447717222578, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210189737) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50263 + ... + 54283.

It is an arithmetic number, because the mean of its divisors is an integer number (37735747).

Almost surely, 2^210189733 is an apocalyptic number.

It is an amenable number.

210189733 is a deficient number, since it is larger than the sum of its proper divisors (16224749).

210189733 is an frugal number, since it uses more digits than its factorization.

210189733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8055 (or 4034 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 210189733 is about 14497.9216786407. The cubic root of 210189733 is about 594.5711506215.

The spelling of 210189733 in words is "two hundred ten million, one hundred eighty-nine thousand, seven hundred thirty-three".