1143253 has 4 divisors (see below), whose sum is σ = 1158988. Its totient is φ = 1127520.

The previous prime is 1143239. The next prime is 1143257. The reversal of 1143253 is 3523411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3523411 = 263 ⋅13397.

It can be written as a sum of positive squares in 2 ways, for example, as 964324 + 178929 = 982^2 + 423^2 .

It is a cyclic number.

It is not a de Polignac number, because 1143253 - 2¹³ = 1135061 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143257) 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 3 ways as a sum of consecutive naturals, for example, 7758 + ... + 7903.

It is an arithmetic number, because the mean of its divisors is an integer number (289747).

2^1143253 is an apocalyptic number.

It is an amenable number.

1143253 is a deficient number, since it is larger than the sum of its proper divisors (15735).

1143253 is an equidigital number, since it uses as much as digits as its factorization.

1143253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15734.

The product of its digits is 360, while the sum is 19.

The square root of 1143253 is about 1069.2300968454. The cubic root of 1143253 is about 104.5636616740.

Adding to 1143253 its reverse (3523411), we get a palindrome (4666664).

It can be divided in two parts, 11 and 43253, that added together give a square (43264 = 208²).

The spelling of 1143253 in words is "one million, one hundred forty-three thousand, two hundred fifty-three".