147224477 has 2 divisors, whose sum is σ = 147224478. Its totient is φ = 147224476.

The previous prime is 147224431. The next prime is 147224509. The reversal of 147224477 is 774422741.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109537156 + 37687321 = 10466^2 + 6139^2 .

It is a cyclic number.

It is not a de Polignac number, because 147224477 - 2²⁶ = 80115613 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 147224477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (147224417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73612238 + 73612239.

It is an arithmetic number, because the mean of its divisors is an integer number (73612239).

Almost surely, 2^147224477 is an apocalyptic number.

It is an amenable number.

147224477 is a deficient number, since it is larger than the sum of its proper divisors (1).

147224477 is an equidigital number, since it uses as much as digits as its factorization.

147224477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87808, while the sum is 38.

The square root of 147224477 is about 12133.6093970426. The cubic root of 147224477 is about 528.0317132103.

The spelling of 147224477 in words is "one hundred forty-seven million, two hundred twenty-four thousand, four hundred seventy-seven".