210136249 has 2 divisors, whose sum is σ = 210136250. Its totient is φ = 210136248.

The previous prime is 210136243. The next prime is 210136253. The reversal of 210136249 is 942631012.

210136249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144769024 + 65367225 = 12032^2 + 8085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210136249 is a prime.

It is not a weakly prime, because it can be changed into another prime (210136243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105068124 + 105068125.

It is an arithmetic number, because the mean of its divisors is an integer number (105068125).

Almost surely, 2^210136249 is an apocalyptic number.

It is an amenable number.

210136249 is a deficient number, since it is larger than the sum of its proper divisors (1).

210136249 is an equidigital number, since it uses as much as digits as its factorization.

210136249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 210136249 is about 14496.0770210426. The cubic root of 210136249 is about 594.5207156477.

The spelling of 210136249 in words is "two hundred ten million, one hundred thirty-six thousand, two hundred forty-nine".