163970434 has 8 divisors (see below), whose sum is σ = 247315068. Its totient is φ = 81532080.

The previous prime is 163970419. The next prime is 163970459. The reversal of 163970434 is 434079361.

It can be written as a sum of positive squares in 2 ways, for example, as 131446225 + 32524209 = 11465^2 + 5703^2 .

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

It is a super-2 number, since 2×163970434² = 53772606452296712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163970393 and 163970402.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226117 + ... + 226840.

Almost surely, 2^163970434 is an apocalyptic number.

163970434 is a deficient number, since it is larger than the sum of its proper divisors (83344634).

163970434 is a wasteful number, since it uses less digits than its factorization.

163970434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453140.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 163970434 is about 12805.0940644729. The cubic root of 163970434 is about 547.3374721040.

The spelling of 163970434 in words is "one hundred sixty-three million, nine hundred seventy thousand, four hundred thirty-four".