147109643 has 4 divisors (see below), whose sum is σ = 147461160. Its totient is φ = 146758128.

The previous prime is 147109639. The next prime is 147109667. The reversal of 147109643 is 346901741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346901741 = 29 ⋅11962129.

It is a cyclic number.

It is not a de Polignac number, because 147109643 - 2² = 147109639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147109693) 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, 175130 + ... + 175967.

It is an arithmetic number, because the mean of its divisors is an integer number (36865290).

Almost surely, 2^147109643 is an apocalyptic number.

147109643 is a deficient number, since it is larger than the sum of its proper divisors (351517).

147109643 is an equidigital number, since it uses as much as digits as its factorization.

147109643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351516.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 147109643 is about 12128.8764112757. The cubic root of 147109643 is about 527.8943905608.

The spelling of 147109643 in words is "one hundred forty-seven million, one hundred nine thousand, six hundred forty-three".