163385477 has 2 divisors, whose sum is σ = 163385478. Its totient is φ = 163385476.

The previous prime is 163385471. The next prime is 163385543. The reversal of 163385477 is 774583361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129640996 + 33744481 = 11386^2 + 5809^2 .

It is a cyclic number.

It is not a de Polignac number, because 163385477 - 2¹⁰ = 163384453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163385471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81692738 + 81692739.

It is an arithmetic number, because the mean of its divisors is an integer number (81692739).

Almost surely, 2^163385477 is an apocalyptic number.

It is an amenable number.

163385477 is a deficient number, since it is larger than the sum of its proper divisors (1).

163385477 is an equidigital number, since it uses as much as digits as its factorization.

163385477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 44.

The square root of 163385477 is about 12782.2328644099. The cubic root of 163385477 is about 546.6858294806.

The spelling of 163385477 in words is "one hundred sixty-three million, three hundred eighty-five thousand, four hundred seventy-seven".