1232578 has 4 divisors (see below), whose sum is σ = 1848870. Its totient is φ = 616288.

The previous prime is 1232573. The next prime is 1232603. The reversal of 1232578 is 8752321.

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

It can be written as a sum of positive squares in only one way, i.e., 628849 + 603729 = 793^2 + 777^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308143 + ... + 308146.

2^1232578 is an apocalyptic number.

1232578 is a deficient number, since it is larger than the sum of its proper divisors (616292).

1232578 is an equidigital number, since it uses as much as digits as its factorization.

1232578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616291.

The product of its digits is 3360, while the sum is 28.

The square root of 1232578 is about 1110.2152944362. The cubic root of 1232578 is about 107.2189304395.

Adding to 1232578 its reverse (8752321), we get a palindrome (9984899).

It can be divided in two parts, 12325 and 78, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 1232578 in words is "one million, two hundred thirty-two thousand, five hundred seventy-eight".