163312061 has 16 divisors (see below), whose sum is σ = 188407296. Its totient is φ = 140160000.

The previous prime is 163312003. The next prime is 163312069. The reversal of 163312061 is 160213361.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 163312061 - 2⁶ = 163311997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163312069) 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 15 ways as a sum of consecutive naturals, for example, 8141 + ... + 19821.

It is an arithmetic number, because the mean of its divisors is an integer number (11775456).

Almost surely, 2^163312061 is an apocalyptic number.

163312061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

163312061 is a deficient number, since it is larger than the sum of its proper divisors (25095235).

163312061 is a wasteful number, since it uses less digits than its factorization.

163312061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11764.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 163312061 is about 12779.3607430106. The cubic root of 163312061 is about 546.6039341971.

The spelling of 163312061 in words is "one hundred sixty-three million, three hundred twelve thousand, sixty-one".