163351042 has 4 divisors (see below), whose sum is σ = 245026566. Its totient is φ = 81675520.

The previous prime is 163351039. The next prime is 163351043. The reversal of 163351042 is 240153361.

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., 148133241 + 15217801 = 12171^2 + 3901^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163350998 and 163351016.

It is not an unprimeable number, because it can be changed into a prime (163351043) by changing a digit.

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, 40837759 + ... + 40837762.

Almost surely, 2^163351042 is an apocalyptic number.

163351042 is a deficient number, since it is larger than the sum of its proper divisors (81675524).

163351042 is an equidigital number, since it uses as much as digits as its factorization.

163351042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81675523.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 163351042 is about 12780.8858065472. The cubic root of 163351042 is about 546.6474204177.

The spelling of 163351042 in words is "one hundred sixty-three million, three hundred fifty-one thousand, forty-two".