1154243 has 2 divisors, whose sum is σ = 1154244. Its totient is φ = 1154242.

The previous prime is 1154239. The next prime is 1154267. The reversal of 1154243 is 3424511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1154243 - 2² = 1154239 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1154233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577121 + 577122.

It is an arithmetic number, because the mean of its divisors is an integer number (577122).

2^1154243 is an apocalyptic number.

1154243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154243 is an equidigital number, since it uses as much as digits as its factorization.

1154243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 20.

The square root of 1154243 is about 1074.3570170106. The cubic root of 1154243 is about 104.8976478047.

Adding to 1154243 its reverse (3424511), we get a palindrome (4578754).

The spelling of 1154243 in words is "one million, one hundred fifty-four thousand, two hundred forty-three".