163473403 has 2 divisors, whose sum is σ = 163473404. Its totient is φ = 163473402.

The previous prime is 163473391. The next prime is 163473407. The reversal of 163473403 is 304374361.

It is a strong prime.

It is an emirp because it is prime and its reverse (304374361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163473403 - 2¹⁷ = 163342331 is a prime.

It is equal to p_9158251 and since 163473403 and 9158251 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (163473407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81736701 + 81736702.

It is an arithmetic number, because the mean of its divisors is an integer number (81736702).

Almost surely, 2^163473403 is an apocalyptic number.

163473403 is a deficient number, since it is larger than the sum of its proper divisors (1).

163473403 is an equidigital number, since it uses as much as digits as its factorization.

163473403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 163473403 is about 12785.6717852446. The cubic root of 163473403 is about 546.7838783385.

The spelling of 163473403 in words is "one hundred sixty-three million, four hundred seventy-three thousand, four hundred three".