147144623 has 4 divisors (see below), whose sum is σ = 147966840. Its totient is φ = 146322408.

The previous prime is 147144617. The next prime is 147144629. The reversal of 147144623 is 326441741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326441741 = 71 ⋅4597771.

It is an interprime number because it is at equal distance from previous prime (147144617) and next prime (147144629).

It is a cyclic number.

It is not a de Polignac number, because 147144623 - 2¹⁰ = 147143599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 147144623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147144629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410840 + ... + 411197.

It is an arithmetic number, because the mean of its divisors is an integer number (36991710).

Almost surely, 2^147144623 is an apocalyptic number.

147144623 is a deficient number, since it is larger than the sum of its proper divisors (822217).

147144623 is an equidigital number, since it uses as much as digits as its factorization.

147144623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822216.

The product of its digits is 16128, while the sum is 32.

The square root of 147144623 is about 12130.3183387741. The cubic root of 147144623 is about 527.9362284761.

The spelling of 147144623 in words is "one hundred forty-seven million, one hundred forty-four thousand, six hundred twenty-three".