163650249 has 36 divisors (see below), whose sum is σ = 289464240. Its totient is φ = 88588080.

The previous prime is 163650241. The next prime is 163650257. The reversal of 163650249 is 942056361.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (163650241) and next prime (163650257).

It is not a de Polignac number, because 163650249 - 2³ = 163650241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (163650241) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1387 + ... + 18144.

Almost surely, 2^163650249 is an apocalyptic number.

163650249 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

163650249 is a deficient number, since it is larger than the sum of its proper divisors (125813991).

163650249 is a wasteful number, since it uses less digits than its factorization.

163650249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19570 (or 19560 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 163650249 is about 12792.5857042273. The cubic root of 163650249 is about 546.9809780747.

The spelling of 163650249 in words is "one hundred sixty-three million, six hundred fifty thousand, two hundred forty-nine".