1141999 has 2 divisors, whose sum is σ = 1142000. Its totient is φ = 1141998.

The previous prime is 1141969. The next prime is 1142003. The reversal of 1141999 is 9991411.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1141999 - 2⁵ = 1141967 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1141909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570999 + 571000.

It is an arithmetic number, because the mean of its divisors is an integer number (571000).

2^1141999 is an apocalyptic number.

1141999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141999 is an equidigital number, since it uses as much as digits as its factorization.

1141999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 34.

The square root of 1141999 is about 1068.6435327086. The cubic root of 1141999 is about 104.5254167703.

The spelling of 1141999 in words is "one million, one hundred forty-one thousand, nine hundred ninety-nine".