163099459 has 4 divisors (see below), whose sum is σ = 164290104. Its totient is φ = 161908816.

The previous prime is 163099427. The next prime is 163099471. The reversal of 163099459 is 954990361.

163099459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954990361 = 13 ⋅73460797.

It is a cyclic number.

It is not a de Polignac number, because 163099459 - 2⁵ = 163099427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163099499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595117 + ... + 595390.

It is an arithmetic number, because the mean of its divisors is an integer number (41072526).

Almost surely, 2^163099459 is an apocalyptic number.

163099459 is a deficient number, since it is larger than the sum of its proper divisors (1190645).

163099459 is a wasteful number, since it uses less digits than its factorization.

163099459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1190644.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 163099459 is about 12771.0398558614. The cubic root of 163099459 is about 546.3666388968.

The spelling of 163099459 in words is "one hundred sixty-three million, ninety-nine thousand, four hundred fifty-nine".