163816249 has 2 divisors, whose sum is σ = 163816250. Its totient is φ = 163816248.

The previous prime is 163816231. The next prime is 163816253. The reversal of 163816249 is 942618361.

163816249 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., 109056249 + 54760000 = 10443^2 + 7400^2 .

It is a cyclic number.

It is not a de Polignac number, because 163816249 - 2¹⁵ = 163783481 is a prime.

It is not a weakly prime, because it can be changed into another prime (163816229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81908124 + 81908125.

It is an arithmetic number, because the mean of its divisors is an integer number (81908125).

Almost surely, 2^163816249 is an apocalyptic number.

It is an amenable number.

163816249 is a deficient number, since it is larger than the sum of its proper divisors (1).

163816249 is an equidigital number, since it uses as much as digits as its factorization.

163816249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 40.

The square root of 163816249 is about 12799.0721929365. The cubic root of 163816249 is about 547.1658604877.

The spelling of 163816249 in words is "one hundred sixty-three million, eight hundred sixteen thousand, two hundred forty-nine".