1125899 has 2 divisors, whose sum is σ = 1125900. Its totient is φ = 1125898.

The previous prime is 1125871. The next prime is 1125907. The reversal of 1125899 is 9985211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1125899 - 2²⁰ = 77323 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1125499) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562949 + 562950.

It is an arithmetic number, because the mean of its divisors is an integer number (562950).

2^1125899 is an apocalyptic number.

1125899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125899 is an equidigital number, since it uses as much as digits as its factorization.

1125899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 35.

The square root of 1125899 is about 1061.0838798135. The cubic root of 1125899 is about 104.0318874114.

The spelling of 1125899 in words is "one million, one hundred twenty-five thousand, eight hundred ninety-nine".