180197001 has 8 divisors (see below), whose sum is σ = 266958560. Its totient is φ = 120131316.

The previous prime is 180196999. The next prime is 180197053. The reversal of 180197001 is 100791081.

It is not a de Polignac number, because 180197001 - 2¹ = 180196999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 6673963 = 180197001 / (1 + 8 + 0 + 1 + 9 + 7 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180197401) 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, 3336955 + ... + 3337008.

It is an arithmetic number, because the mean of its divisors is an integer number (33369820).

Almost surely, 2^180197001 is an apocalyptic number.

It is an amenable number.

180197001 is a deficient number, since it is larger than the sum of its proper divisors (86761559).

180197001 is an equidigital number, since it uses as much as digits as its factorization.

180197001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6673972 (or 6673966 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The square root of 180197001 is about 13423.7476510846. The cubic root of 180197001 is about 564.8275256045.

The spelling of 180197001 in words is "one hundred eighty million, one hundred ninety-seven thousand, one".