147947773 has 2 divisors, whose sum is σ = 147947774. Its totient is φ = 147947772.

The previous prime is 147947743. The next prime is 147947791. The reversal of 147947773 is 377749741.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105411289 + 42536484 = 10267^2 + 6522^2 .

It is a cyclic number.

It is not a de Polignac number, because 147947773 - 2²⁵ = 114393341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147947743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73973886 + 73973887.

It is an arithmetic number, because the mean of its divisors is an integer number (73973887).

Almost surely, 2^147947773 is an apocalyptic number.

It is an amenable number.

147947773 is a deficient number, since it is larger than the sum of its proper divisors (1).

147947773 is an equidigital number, since it uses as much as digits as its factorization.

147947773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1037232, while the sum is 49.

The square root of 147947773 is about 12163.3783547171. The cubic root of 147947773 is about 528.8950195659.

The spelling of 147947773 in words is "one hundred forty-seven million, nine hundred forty-seven thousand, seven hundred seventy-three".