1153263 has 8 divisors (see below), whose sum is σ = 1628208. Its totient is φ = 723584.

The previous prime is 1153261. The next prime is 1153267. The reversal of 1153263 is 3623511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1153263 - 2¹ = 1153261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11256 + ... + 11357.

It is an arithmetic number, because the mean of its divisors is an integer number (203526).

2^1153263 is an apocalyptic number.

1153263 is a deficient number, since it is larger than the sum of its proper divisors (474945).

1153263 is a wasteful number, since it uses less digits than its factorization.

1153263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22633.

The product of its digits is 540, while the sum is 21.

The square root of 1153263 is about 1073.9008334106. The cubic root of 1153263 is about 104.8679519197.

Adding to 1153263 its reverse (3623511), we get a palindrome (4776774).

The spelling of 1153263 in words is "one million, one hundred fifty-three thousand, two hundred sixty-three".