207149849 has 2 divisors, whose sum is σ = 207149850. Its totient is φ = 207149848.

The previous prime is 207149819. The next prime is 207149867. The reversal of 207149849 is 948941702.

207149849 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., 167055625 + 40094224 = 12925^2 + 6332^2 .

It is a cyclic number.

It is not a de Polignac number, because 207149849 - 2¹⁶ = 207084313 is a prime.

It is a super-2 number, since 2×207149849² = 85822119881445602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (207149809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103574924 + 103574925.

It is an arithmetic number, because the mean of its divisors is an integer number (103574925).

Almost surely, 2^207149849 is an apocalyptic number.

It is an amenable number.

207149849 is a deficient number, since it is larger than the sum of its proper divisors (1).

207149849 is an equidigital number, since it uses as much as digits as its factorization.

207149849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 207149849 is about 14392.7012405594. The cubic root of 207149849 is about 591.6908777326.

The spelling of 207149849 in words is "two hundred seven million, one hundred forty-nine thousand, eight hundred forty-nine".