147144785 has 8 divisors (see below), whose sum is σ = 176746536. Its totient is φ = 117600640.

The previous prime is 147144773. The next prime is 147144787. The reversal of 147144785 is 587441741.

It can be written as a sum of positive squares in 4 ways, for example, as 49688401 + 97456384 = 7049^2 + 9872^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 147144785 - 2¹⁸ = 146882641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (147144787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8564 + ... + 19173.

It is an arithmetic number, because the mean of its divisors is an integer number (22093317).

Almost surely, 2^147144785 is an apocalyptic number.

It is an amenable number.

147144785 is a deficient number, since it is larger than the sum of its proper divisors (29601751).

147144785 is a wasteful number, since it uses less digits than its factorization.

147144785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28803.

The product of its digits is 125440, while the sum is 41.

The square root of 147144785 is about 12130.3250162557. The cubic root of 147144785 is about 527.9364222212.

The spelling of 147144785 in words is "one hundred forty-seven million, one hundred forty-four thousand, seven hundred eighty-five".