1232545 has 4 divisors (see below), whose sum is σ = 1479060. Its totient is φ = 986032.

The previous prime is 1232537. The next prime is 1232563. The reversal of 1232545 is 5452321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5452321 = 7 ⋅778903.

It can be written as a sum of positive squares in 2 ways, for example, as 266256 + 966289 = 516^2 + 983^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232545 - 2³ = 1232537 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123250 + ... + 123259.

It is an arithmetic number, because the mean of its divisors is an integer number (369765).

2^1232545 is an apocalyptic number.

It is an amenable number.

1232545 is a deficient number, since it is larger than the sum of its proper divisors (246515).

1232545 is an equidigital number, since it uses as much as digits as its factorization.

1232545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246514.

The product of its digits is 1200, while the sum is 22.

The square root of 1232545 is about 1110.2004323544. The cubic root of 1232545 is about 107.2179735680.

Adding to 1232545 its reverse (5452321), we get a palindrome (6684866).

The spelling of 1232545 in words is "one million, two hundred thirty-two thousand, five hundred forty-five".