163952331 has 8 divisors (see below), whose sum is σ = 218688000. Its totient is φ = 109259112.

The previous prime is 163952297. The next prime is 163952351. The reversal of 163952331 is 133259361.

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

It is not a de Polignac number, because 163952331 - 2¹⁹ = 163428043 is a prime.

It is a super-2 number, since 2×163952331² = 53760733680667122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 163952292 and 163952301.

It is not an unprimeable number, because it can be changed into a prime (163952351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115 + ... + 18108.

It is an arithmetic number, because the mean of its divisors is an integer number (27336000).

Almost surely, 2^163952331 is an apocalyptic number.

163952331 is a deficient number, since it is larger than the sum of its proper divisors (54735669).

163952331 is a wasteful number, since it uses less digits than its factorization.

163952331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21225.

The product of its digits is 14580, while the sum is 33.

The square root of 163952331 is about 12804.3871778387. The cubic root of 163952331 is about 547.3173286048.

The spelling of 163952331 in words is "one hundred sixty-three million, nine hundred fifty-two thousand, three hundred thirty-one".