163652042 has 4 divisors (see below), whose sum is σ = 245478066. Its totient is φ = 81826020.

The previous prime is 163652029. The next prime is 163652051. The reversal of 163652042 is 240256361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240256361 = 601 ⋅399761.

It can be written as a sum of positive squares in only one way, i.e., 88153321 + 75498721 = 9389^2 + 8689^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163651996 and 163652014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40913009 + ... + 40913012.

Almost surely, 2^163652042 is an apocalyptic number.

163652042 is a deficient number, since it is larger than the sum of its proper divisors (81826024).

163652042 is an equidigital number, since it uses as much as digits as its factorization.

163652042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81826023.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 163652042 is about 12792.6557836909. The cubic root of 163652042 is about 546.9829756952.

The spelling of 163652042 in words is "one hundred sixty-three million, six hundred fifty-two thousand, forty-two".