163649534 has 8 divisors (see below), whose sum is σ = 245567208. Its totient is φ = 81793800.

The previous prime is 163649513. The next prime is 163649543. The reversal of 163649534 is 435946361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 163649491 and 163649500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8192 + ... + 19859.

It is an arithmetic number, because the mean of its divisors is an integer number (30695901).

Almost surely, 2^163649534 is an apocalyptic number.

163649534 is a deficient number, since it is larger than the sum of its proper divisors (81917674).

163649534 is a wasteful number, since it uses less digits than its factorization.

163649534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30970.

The product of its digits is 233280, while the sum is 41.

The square root of 163649534 is about 12792.5577583218. The cubic root of 163649534 is about 546.9801814734.

The spelling of 163649534 in words is "one hundred sixty-three million, six hundred forty-nine thousand, five hundred thirty-four".