163099474 has 4 divisors (see below), whose sum is σ = 244649214. Its totient is φ = 81549736.

The previous prime is 163099471. The next prime is 163099483. The reversal of 163099474 is 474990361.

163099474 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 84511249 + 78588225 = 9193^2 + 8865^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 163099474.

It is not an unprimeable number, because it can be changed into a prime (163099471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40774867 + ... + 40774870.

Almost surely, 2^163099474 is an apocalyptic number.

163099474 is a deficient number, since it is larger than the sum of its proper divisors (81549740).

163099474 is an equidigital number, since it uses as much as digits as its factorization.

163099474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81549739.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 163099474 is about 12771.0404431276. The cubic root of 163099474 is about 546.3666556463.

The spelling of 163099474 in words is "one hundred sixty-three million, ninety-nine thousand, four hundred seventy-four".