163031434 has 8 divisors (see below), whose sum is σ = 244795428. Its totient is φ = 81432960.

The previous prime is 163031399. The next prime is 163031437. The reversal of 163031434 is 434130361.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 158634025 + 4397409 = 12595^2 + 2097^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 163031399 and 163031408.

It is not an unprimeable number, because it can be changed into a prime (163031437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38887 + ... + 42874.

Almost surely, 2^163031434 is an apocalyptic number.

163031434 is a deficient number, since it is larger than the sum of its proper divisors (81763994).

163031434 is an equidigital number, since it uses as much as digits as its factorization.

163031434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82760.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 163031434 is about 12768.3763259077. The cubic root of 163031434 is about 546.2906693848.

Adding to 163031434 its reverse (434130361), we get a palindrome (597161795).

The spelling of 163031434 in words is "one hundred sixty-three million, thirty-one thousand, four hundred thirty-four".