163229091 has 8 divisors (see below), whose sum is σ = 227101440. Its totient is φ = 104088072.

The previous prime is 163229069. The next prime is 163229093. The reversal of 163229091 is 190922361.

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

It is not a de Polignac number, because 163229091 - 2¹⁹ = 162704803 is a prime.

It is a super-2 number, since 2×163229091² = 53287472297372562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (163229093) 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, 1182751 + ... + 1182888.

It is an arithmetic number, because the mean of its divisors is an integer number (28387680).

Almost surely, 2^163229091 is an apocalyptic number.

163229091 is a deficient number, since it is larger than the sum of its proper divisors (63872349).

163229091 is a wasteful number, since it uses less digits than its factorization.

163229091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365665.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 163229091 is about 12776.1140805802. The cubic root of 163229091 is about 546.5113519131.

The spelling of 163229091 in words is "one hundred sixty-three million, two hundred twenty-nine thousand, ninety-one".