1154863 has 2 divisors, whose sum is σ = 1154864. Its totient is φ = 1154862.

The previous prime is 1154849. The next prime is 1154887. The reversal of 1154863 is 3684511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1154863 - 2¹³ = 1146671 is a prime.

1154863 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1154893) 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, 577431 + 577432.

It is an arithmetic number, because the mean of its divisors is an integer number (577432).

2^1154863 is an apocalyptic number.

1154863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154863 is an equidigital number, since it uses as much as digits as its factorization.

1154863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 28.

The square root of 1154863 is about 1074.6455229516. The cubic root of 1154863 is about 104.9164263174.

It can be divided in two parts, 11548 and 63, that added together give a palindrome (11611).

The spelling of 1154863 in words is "one million, one hundred fifty-four thousand, eight hundred sixty-three".