147663641 has 4 divisors (see below), whose sum is σ = 147704832. Its totient is φ = 147622452.

The previous prime is 147663589. The next prime is 147663643. The reversal of 147663641 is 146366741.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 146366741 = 29 ⋅5047129.

It is a cyclic number.

It is not a de Polignac number, because 147663641 - 2¹⁰ = 147662617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 147663595 and 147663604.

It is not an unprimeable number, because it can be changed into a prime (147663643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14645 + ... + 22578.

It is an arithmetic number, because the mean of its divisors is an integer number (36926208).

Almost surely, 2^147663641 is an apocalyptic number.

It is an amenable number.

147663641 is a deficient number, since it is larger than the sum of its proper divisors (41191).

147663641 is an equidigital number, since it uses as much as digits as its factorization.

147663641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41190.

The product of its digits is 72576, while the sum is 38.

The square root of 147663641 is about 12151.6929273250. The cubic root of 147663641 is about 528.5562236504.

The spelling of 147663641 in words is "one hundred forty-seven million, six hundred sixty-three thousand, six hundred forty-one".