1172071 has 4 divisors (see below), whose sum is σ = 1175944. Its totient is φ = 1168200.

The previous prime is 1172069. The next prime is 1172081. The reversal of 1172071 is 1702711.

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

It is a cyclic number.

It is not a de Polignac number, because 1172071 - 2¹ = 1172069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172021) 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 3 ways as a sum of consecutive naturals, for example, 1440 + ... + 2101.

It is an arithmetic number, because the mean of its divisors is an integer number (293986).

2^1172071 is an apocalyptic number.

1172071 is a deficient number, since it is larger than the sum of its proper divisors (3873).

1172071 is an equidigital number, since it uses as much as digits as its factorization.

1172071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 1172071 is about 1082.6222794678. The cubic root of 1172071 is about 105.4349606236.

Adding to 1172071 its reverse (1702711), we get a palindrome (2874782).

The spelling of 1172071 in words is "one million, one hundred seventy-two thousand, seventy-one".