163047730 has 8 divisors (see below), whose sum is σ = 293485932. Its totient is φ = 65219088.

The previous prime is 163047727. The next prime is 163047749. The reversal of 163047730 is 37740361.

It can be written as a sum of positive squares in 2 ways, for example, as 159946609 + 3101121 = 12647^2 + 1761^2 .

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 = 163047692 and 163047701.

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, 8152377 + ... + 8152396.

Almost surely, 2^163047730 is an apocalyptic number.

163047730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

163047730 is a deficient number, since it is larger than the sum of its proper divisors (130438202).

163047730 is a wasteful number, since it uses less digits than its factorization.

163047730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16304780.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 163047730 is about 12769.0144490481. The cubic root of 163047730 is about 546.3088704886.

The spelling of 163047730 in words is "one hundred sixty-three million, forty-seven thousand, seven hundred thirty".