1154263 has 4 divisors (see below), whose sum is σ = 1259208. Its totient is φ = 1049320.

The previous prime is 1154243. The next prime is 1154267. The reversal of 1154263 is 3624511.

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

It is a cyclic number.

It is not a de Polignac number, because 1154263 - 2⁹ = 1153751 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52456 + ... + 52477.

It is an arithmetic number, because the mean of its divisors is an integer number (314802).

2^1154263 is an apocalyptic number.

1154263 is a deficient number, since it is larger than the sum of its proper divisors (104945).

1154263 is a wasteful number, since it uses less digits than its factorization.

1154263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104944.

The product of its digits is 720, while the sum is 22.

The square root of 1154263 is about 1074.3663248632. The cubic root of 1154263 is about 104.8982536681.

Adding to 1154263 its reverse (3624511), we get a palindrome (4778774).

The spelling of 1154263 in words is "one million, one hundred fifty-four thousand, two hundred sixty-three".