163430641 has 8 divisors (see below), whose sum is σ = 181652544. Its totient is φ = 145769520.

The previous prime is 163430629. The next prime is 163430671. The reversal of 163430641 is 146034361.

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

It is a cyclic number.

It is not a de Polignac number, because 163430641 - 2⁷ = 163430513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163430671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139581 + ... + 140746.

It is an arithmetic number, because the mean of its divisors is an integer number (22706568).

Almost surely, 2^163430641 is an apocalyptic number.

163430641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163430641 is a deficient number, since it is larger than the sum of its proper divisors (18221903).

163430641 is a wasteful number, since it uses less digits than its factorization.

163430641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280391.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 163430641 is about 12783.9994133291. Note that the first 3 decimals coincide. The cubic root of 163430641 is about 546.7361975724.

The spelling of 163430641 in words is "one hundred sixty-three million, four hundred thirty thousand, six hundred forty-one".