147056639 has 4 divisors (see below), whose sum is σ = 147248640. Its totient is φ = 146864640.

The previous prime is 147056531. The next prime is 147056711. The reversal of 147056639 is 936650741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936650741 = 13 ⋅72050057.

It is a cyclic number.

It is not a de Polignac number, because 147056639 - 2²⁰ = 146008063 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 147056596 and 147056605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147056339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94847 + ... + 96384.

It is an arithmetic number, because the mean of its divisors is an integer number (36812160).

Almost surely, 2^147056639 is an apocalyptic number.

147056639 is a deficient number, since it is larger than the sum of its proper divisors (192001).

147056639 is an equidigital number, since it uses as much as digits as its factorization.

147056639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192000.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 147056639 is about 12126.6911810271. The cubic root of 147056639 is about 527.8309823552.

The spelling of 147056639 in words is "one hundred forty-seven million, fifty-six thousand, six hundred thirty-nine".