163450706 has 4 divisors (see below), whose sum is σ = 245176062. Its totient is φ = 81725352.

The previous prime is 163450691. The next prime is 163450717. The reversal of 163450706 is 607054361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607054361 = 29 ⋅20932909.

It can be written as a sum of positive squares in only one way, i.e., 156025081 + 7425625 = 12491^2 + 2725^2 .

It is a super-3 number, since 3×163450706³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40862675 + ... + 40862678.

Almost surely, 2^163450706 is an apocalyptic number.

163450706 is a deficient number, since it is larger than the sum of its proper divisors (81725356).

163450706 is an equidigital number, since it uses as much as digits as its factorization.

163450706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81725355.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 163450706 is about 12784.7841593044. The cubic root of 163450706 is about 546.7585716161.

The spelling of 163450706 in words is "one hundred sixty-three million, four hundred fifty thousand, seven hundred six".