1180427 has 2 divisors, whose sum is σ = 1180428. Its totient is φ = 1180426.

The previous prime is 1180423. The next prime is 1180447. The reversal of 1180427 is 7240811.

It is a weak prime.

It is an emirp because it is prime and its reverse (7240811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1180427 - 2² = 1180423 is a prime.

It is equal to p₉₁₅₂₆ and since 1180427 and 91526 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (1180423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590213 + 590214.

It is an arithmetic number, because the mean of its divisors is an integer number (590214).

2^1180427 is an apocalyptic number.

1180427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1180427 is an equidigital number, since it uses as much as digits as its factorization.

1180427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1180427 is about 1086.4745740237. The cubic root of 1180427 is about 105.6849253223.

The spelling of 1180427 in words is "one million, one hundred eighty thousand, four hundred twenty-seven".