163078001 has 4 divisors (see below), whose sum is σ = 163398900. Its totient is φ = 162757104.

The previous prime is 163077989. The next prime is 163078009. The reversal of 163078001 is 100870361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139263601 + 23814400 = 11801^2 + 4880^2 .

It is a cyclic number.

It is not a de Polignac number, because 163078001 - 2¹⁸ = 162815857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163078009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159686 + ... + 160703.

It is an arithmetic number, because the mean of its divisors is an integer number (40849725).

Almost surely, 2^163078001 is an apocalyptic number.

It is an amenable number.

163078001 is a deficient number, since it is larger than the sum of its proper divisors (320899).

163078001 is an equidigital number, since it uses as much as digits as its factorization.

163078001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320898.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 163078001 is about 12770.1997243583. The cubic root of 163078001 is about 546.3426771383.

The spelling of 163078001 in words is "one hundred sixty-three million, seventy-eight thousand, one".