1154245 has 4 divisors (see below), whose sum is σ = 1385100. Its totient is φ = 923392.

The previous prime is 1154243. The next prime is 1154267. The reversal of 1154245 is 5424511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 471969 + 682276 = 687^2 + 826^2 .

It is a cyclic number.

It is not a de Polignac number, because 1154245 - 2¹ = 1154243 is a prime.

It is a super-3 number, since 3×1154245³ = 4613337849243768375, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154243) 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, 115420 + ... + 115429.

It is an arithmetic number, because the mean of its divisors is an integer number (346275).

2^1154245 is an apocalyptic number.

It is an amenable number.

1154245 is a deficient number, since it is larger than the sum of its proper divisors (230855).

1154245 is an equidigital number, since it uses as much as digits as its factorization.

1154245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230854.

The product of its digits is 800, while the sum is 22.

The square root of 1154245 is about 1074.3579477995. The cubic root of 1154245 is about 104.8977083914.

Adding to 1154245 its reverse (5424511), we get a palindrome (6578756).

It can be divided in two parts, 11 and 54245, that multiplied together give a palindrome (596695).

The spelling of 1154245 in words is "one million, one hundred fifty-four thousand, two hundred forty-five".