147840073 has 2 divisors, whose sum is σ = 147840074. Its totient is φ = 147840072.

The previous prime is 147840037. The next prime is 147840089. The reversal of 147840073 is 370048741.

Together with previous prime (147840037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147088384 + 751689 = 12128^2 + 867^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147840073 is a prime.

It is not a weakly prime, because it can be changed into another prime (147840013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73920036 + 73920037.

It is an arithmetic number, because the mean of its divisors is an integer number (73920037).

Almost surely, 2^147840073 is an apocalyptic number.

It is an amenable number.

147840073 is a deficient number, since it is larger than the sum of its proper divisors (1).

147840073 is an equidigital number, since it uses as much as digits as its factorization.

147840073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 147840073 is about 12158.9503247608. The cubic root of 147840073 is about 528.7666503446.

The spelling of 147840073 in words is "one hundred forty-seven million, eight hundred forty thousand, seventy-three".