1125311 has 4 divisors (see below), whose sum is σ = 1227624. Its totient is φ = 1023000.

The previous prime is 1125283. The next prime is 1125317. The reversal of 1125311 is 1135211.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-1125311 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125317) 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 in 3 ways as a sum of consecutive naturals, for example, 51140 + ... + 51161.

It is an arithmetic number, because the mean of its divisors is an integer number (306906).

2^1125311 is an apocalyptic number.

1125311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1125311 is a deficient number, since it is larger than the sum of its proper divisors (102313).

1125311 is a wasteful number, since it uses less digits than its factorization.

1125311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102312.

The product of its digits is 30, while the sum is 14.

The square root of 1125311 is about 1060.8067684550. The cubic root of 1125311 is about 104.0137740632.

The spelling of 1125311 in words is "one million, one hundred twenty-five thousand, three hundred eleven".