210953097 has 6 divisors (see below), whose sum is σ = 304710042. Its totient is φ = 140635392.

The previous prime is 210953087. The next prime is 210953107. The reversal of 210953097 is 790359012.

It is an interprime number because it is at equal distance from previous prime (210953087) and next prime (210953107).

It can be written as a sum of positive squares in only one way, i.e., 184851216 + 26101881 = 13596^2 + 5109^2 .

It is not a de Polignac number, because 210953097 - 2¹⁵ = 210920329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210953027) 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 5 ways as a sum of consecutive naturals, for example, 11719608 + ... + 11719625.

It is an arithmetic number, because the mean of its divisors is an integer number (50785007).

Almost surely, 2^210953097 is an apocalyptic number.

It is an amenable number.

210953097 is a deficient number, since it is larger than the sum of its proper divisors (93756945).

210953097 is a wasteful number, since it uses less digits than its factorization.

210953097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23439239 (or 23439236 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 210953097 is about 14524.2244887636. The cubic root of 210953097 is about 595.2900659453.

The spelling of 210953097 in words is "two hundred ten million, nine hundred fifty-three thousand, ninety-seven".