1156867 has 6 divisors (see below), whose sum is σ = 1229228. Its totient is φ = 1088544.

The previous prime is 1156849. The next prime is 1156873. The reversal of 1156867 is 7686511.

It is not a de Polignac number, because 1156867 - 2¹¹ = 1154819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1156807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1713 + ... + 2290.

2^1156867 is an apocalyptic number.

1156867 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1156867 is a deficient number, since it is larger than the sum of its proper divisors (72361).

1156867 is an equidigital number, since it uses as much as digits as its factorization.

1156867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037 (or 4020 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 1156867 is about 1075.5775192891. The cubic root of 1156867 is about 104.9770773846.

The spelling of 1156867 in words is "one million, one hundred fifty-six thousand, eight hundred sixty-seven".