163900149 has 32 divisors (see below), whose sum is σ = 256800000. Its totient is φ = 92941632.

The previous prime is 163900127. The next prime is 163900153. The reversal of 163900149 is 941009361.

It is not a de Polignac number, because 163900149 - 2⁸ = 163899893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163900159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152787 + ... + 153855.

It is an arithmetic number, because the mean of its divisors is an integer number (8025000).

Almost surely, 2^163900149 is an apocalyptic number.

It is an amenable number.

163900149 is a deficient number, since it is larger than the sum of its proper divisors (92899851).

163900149 is a wasteful number, since it uses less digits than its factorization.

163900149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1242 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 163900149 is about 12802.3493547083. The cubic root of 163900149 is about 547.2592565559.

The spelling of 163900149 in words is "one hundred sixty-three million, nine hundred thousand, one hundred forty-nine".