163552997 has 8 divisors (see below), whose sum is σ = 167223936. Its totient is φ = 159890112.

The previous prime is 163552981. The next prime is 163553029. The reversal of 163552997 is 799255361.

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

It is a cyclic number.

It is not a de Polignac number, because 163552997 - 2⁴ = 163552981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163552927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59618 + ... + 62300.

It is an arithmetic number, because the mean of its divisors is an integer number (20902992).

Almost surely, 2^163552997 is an apocalyptic number.

It is an amenable number.

163552997 is a deficient number, since it is larger than the sum of its proper divisors (3670939).

163552997 is a wasteful number, since it uses less digits than its factorization.

163552997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4027.

The product of its digits is 510300, while the sum is 47.

The square root of 163552997 is about 12788.7840313300. The cubic root of 163552997 is about 546.8726056254.

The spelling of 163552997 in words is "one hundred sixty-three million, five hundred fifty-two thousand, nine hundred ninety-seven".