163299842 has 4 divisors (see below), whose sum is σ = 244949766. Its totient is φ = 81649920.

The previous prime is 163299827. The next prime is 163299859. The reversal of 163299842 is 248992361.

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., 82101721 + 81198121 = 9061^2 + 9011^2 .

It is a junction number, because it is equal to n+sod(n) for n = 163299793 and 163299802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40824959 + ... + 40824962.

Almost surely, 2^163299842 is an apocalyptic number.

163299842 is a deficient number, since it is larger than the sum of its proper divisors (81649924).

163299842 is an equidigital number, since it uses as much as digits as its factorization.

163299842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81649923.

The product of its digits is 186624, while the sum is 44.

The square root of 163299842 is about 12778.8826585113. The cubic root of 163299842 is about 546.5903015644.

The spelling of 163299842 in words is "one hundred sixty-three million, two hundred ninety-nine thousand, eight hundred forty-two".