1173081 has 16 divisors (see below), whose sum is σ = 1925504. Its totient is φ = 618624.

The previous prime is 1173059. The next prime is 1173101. The reversal of 1173081 is 1803711.

It is not a de Polignac number, because 1173081 - 2⁷ = 1172953 is a prime.

It is a super-2 number, since 2×1173081² = 2752238065122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1173001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1876 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (120344).

2^1173081 is an apocalyptic number.

It is an amenable number.

1173081 is a deficient number, since it is larger than the sum of its proper divisors (752423).

1173081 is a wasteful number, since it uses less digits than its factorization.

1173081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4320.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 1173081 is about 1083.0886390319. The cubic root of 1173081 is about 105.4652371560.

Adding to 1173081 its reverse (1803711), we get a palindrome (2976792).

It can be divided in two parts, 11730 and 81, that added together give a palindrome (11811).

The spelling of 1173081 in words is "one million, one hundred seventy-three thousand, eighty-one".