147781323 has 24 divisors (see below), whose sum is σ = 227212128. Its totient is φ = 92236032.

The previous prime is 147781321. The next prime is 147781351. The reversal of 147781323 is 323187741.

It is not a de Polignac number, because 147781323 - 2¹ = 147781321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (147781321) 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 23 ways as a sum of consecutive naturals, for example, 27690 + ... + 32592.

It is an arithmetic number, because the mean of its divisors is an integer number (9467172).

Almost surely, 2^147781323 is an apocalyptic number.

147781323 is a deficient number, since it is larger than the sum of its proper divisors (79430805).

147781323 is a wasteful number, since it uses less digits than its factorization.

147781323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123 (or 5120 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 147781323 is about 12156.5341689151. The cubic root of 147781323 is about 528.6965990702.

The spelling of 147781323 in words is "one hundred forty-seven million, seven hundred eighty-one thousand, three hundred twenty-three".