210493953 has 12 divisors (see below), whose sum is σ = 317266560. Its totient is φ = 134227896.

The previous prime is 210493883. The next prime is 210493963. The reversal of 210493953 is 359394012.

It is a happy number.

It is not a de Polignac number, because 210493953 - 2⁸ = 210493697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (210493963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 508233 + ... + 508646.

It is an arithmetic number, because the mean of its divisors is an integer number (26438880).

Almost surely, 2^210493953 is an apocalyptic number.

210493953 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

210493953 is a deficient number, since it is larger than the sum of its proper divisors (106772607).

210493953 is a wasteful number, since it uses less digits than its factorization.

210493953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1016908 (or 1016905 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The square root of 210493953 is about 14508.4097336683. The cubic root of 210493953 is about 594.8578649734.

The spelling of 210493953 in words is "two hundred ten million, four hundred ninety-three thousand, nine hundred fifty-three".