163240342 has 4 divisors (see below), whose sum is σ = 244860516. Its totient is φ = 81620170.

The previous prime is 163240321. The next prime is 163240367. The reversal of 163240342 is 243042361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243042361 = 61 ⋅3984301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40810084 + ... + 40810087.

It is an arithmetic number, because the mean of its divisors is an integer number (61215129).

Almost surely, 2^163240342 is an apocalyptic number.

163240342 is a deficient number, since it is larger than the sum of its proper divisors (81620174).

163240342 is an equidigital number, since it uses as much as digits as its factorization.

163240342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81620173.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 163240342 is about 12776.5543868447. The cubic root of 163240342 is about 546.5239082083.

The spelling of 163240342 in words is "one hundred sixty-three million, two hundred forty thousand, three hundred forty-two".