163620134 has 8 divisors (see below), whose sum is σ = 258347640. Its totient is φ = 77504256.

The previous prime is 163620133. The next prime is 163620143. The reversal of 163620134 is 431026361.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163620131) 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 in 3 ways as a sum of consecutive naturals, for example, 2152859 + ... + 2152934.

It is an arithmetic number, because the mean of its divisors is an integer number (32293455).

Almost surely, 2^163620134 is an apocalyptic number.

163620134 is a deficient number, since it is larger than the sum of its proper divisors (94727506).

163620134 is a wasteful number, since it uses less digits than its factorization.

163620134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4305814.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 163620134 is about 12791.4086010885. The cubic root of 163620134 is about 546.9474241127.

Adding to 163620134 its reverse (431026361), we get a palindrome (594646495).

The spelling of 163620134 in words is "one hundred sixty-three million, six hundred twenty thousand, one hundred thirty-four".