1173001 has 2 divisors, whose sum is σ = 1173002. Its totient is φ = 1173000.

The previous prime is 1172993. The next prime is 1173013. The reversal of 1173001 is 1003711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 853776 + 319225 = 924^2 + 565^2 .

It is an emirp because it is prime and its reverse (1003711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1173001 - 2³ = 1172993 is a prime.

1173001 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1173101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586500 + 586501.

It is an arithmetic number, because the mean of its divisors is an integer number (586501).

2^1173001 is an apocalyptic number.

It is an amenable number.

1173001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1173001 is an equidigital number, since it uses as much as digits as its factorization.

1173001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21, while the sum is 13.

The square root of 1173001 is about 1083.0517069836. The cubic root of 1173001 is about 105.4628396487.

Adding to 1173001 its reverse (1003711), we get a palindrome (2176712).

The spelling of 1173001 in words is "one million, one hundred seventy-three thousand, one".