1172081 has 2 divisors, whose sum is σ = 1172082. Its totient is φ = 1172080.

The previous prime is 1172069. The next prime is 1172107. The reversal of 1172081 is 1802711.

1172081 is nontrivially palindromic in base 9.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 781456 + 390625 = 884^2 + 625^2 .

It is an emirp because it is prime and its reverse (1802711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1172081 - 2¹⁰ = 1171057 is a prime.

It is a super-2 number, since 2×1172081² = 2747547741122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1172021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586040 + 586041.

It is an arithmetic number, because the mean of its divisors is an integer number (586041).

2^1172081 is an apocalyptic number.

It is an amenable number.

1172081 is a deficient number, since it is larger than the sum of its proper divisors (1).

1172081 is an equidigital number, since it uses as much as digits as its factorization.

1172081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 1172081 is about 1082.6268978739. The cubic root of 1172081 is about 105.4352604765.

Adding to 1172081 its reverse (1802711), we get a palindrome (2974792).

The spelling of 1172081 in words is "one million, one hundred seventy-two thousand, eighty-one".