163247475 has 12 divisors (see below), whose sum is σ = 269902616. Its totient is φ = 87065280.

The previous prime is 163247453. The next prime is 163247477. The reversal of 163247475 is 574742361.

It is not a de Polignac number, because 163247475 - 2⁷ = 163247347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163247477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1088242 + ... + 1088391.

Almost surely, 2^163247475 is an apocalyptic number.

163247475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

163247475 is a deficient number, since it is larger than the sum of its proper divisors (106655141).

163247475 is a wasteful number, since it uses less digits than its factorization.

163247475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176646 (or 2176641 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 163247475 is about 12776.8335279129. The cubic root of 163247475 is about 546.5318684511.

The spelling of 163247475 in words is "one hundred sixty-three million, two hundred forty-seven thousand, four hundred seventy-five".