163625133 has 8 divisors (see below), whose sum is σ = 249333568. Its totient is φ = 93500064.

The previous prime is 163625123. The next prime is 163625141. The reversal of 163625133 is 331526361.

It is a happy number.

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

It is not a de Polignac number, because 163625133 - 2⁴ = 163625117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163625133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163625123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3895816 + ... + 3895857.

It is an arithmetic number, because the mean of its divisors is an integer number (31166696).

Almost surely, 2^163625133 is an apocalyptic number.

It is an amenable number.

163625133 is a deficient number, since it is larger than the sum of its proper divisors (85708435).

163625133 is an equidigital number, since it uses as much as digits as its factorization.

163625133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7791683.

The product of its digits is 9720, while the sum is 30.

The square root of 163625133 is about 12791.6040041896. The cubic root of 163625133 is about 546.9529942551.

The spelling of 163625133 in words is "one hundred sixty-three million, six hundred twenty-five thousand, one hundred thirty-three".