1121463 has 18 divisors (see below), whose sum is σ = 1885104. Its totient is φ = 640584.

The previous prime is 1121453. The next prime is 1121509. The reversal of 1121463 is 3641211.

It is a happy number.

It is not a de Polignac number, because 1121463 - 2⁴ = 1121447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 831 + ... + 1712.

It is an arithmetic number, because the mean of its divisors is an integer number (104728).

2^1121463 is an apocalyptic number.

1121463 is a deficient number, since it is larger than the sum of its proper divisors (763641).

1121463 is a wasteful number, since it uses less digits than its factorization.

1121463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2563 (or 2553 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1121463 is about 1058.9915013823. The cubic root of 1121463 is about 103.8950803321.

Adding to 1121463 its sum of digits (18), we get a square (1121481 = 1059²).

Adding to 1121463 its reverse (3641211), we get a palindrome (4762674).

The spelling of 1121463 in words is "one million, one hundred twenty-one thousand, four hundred sixty-three".