147043729 has 4 divisors (see below), whose sum is σ = 168049984. Its totient is φ = 126037476.

The previous prime is 147043709. The next prime is 147043763. The reversal of 147043729 is 927340741.

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: 927340741 = 163 ⋅5689207.

It is a cyclic number.

It is not a de Polignac number, because 147043729 - 2⁵ = 147043697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147043709) 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, 10503117 + ... + 10503130.

It is an arithmetic number, because the mean of its divisors is an integer number (42012496).

Almost surely, 2^147043729 is an apocalyptic number.

It is an amenable number.

147043729 is a deficient number, since it is larger than the sum of its proper divisors (21006255).

147043729 is an equidigital number, since it uses as much as digits as its factorization.

147043729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21006254.

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 147043729 is about 12126.1588724542. The cubic root of 147043729 is about 527.8155359317.

The spelling of 147043729 in words is "one hundred forty-seven million, forty-three thousand, seven hundred twenty-nine".