1231452604 has 12 divisors (see below), whose sum is σ = 2157159928. Its totient is φ = 615121200.

The previous prime is 1231452601. The next prime is 1231452631. The reversal of 1231452604 is 4062541321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231452601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146682 + ... + 154849.

Almost surely, 2^1231452604 is an apocalyptic number.

It is an amenable number.

1231452604 is a deficient number, since it is larger than the sum of its proper divisors (925707324).

1231452604 is a wasteful number, since it uses less digits than its factorization.

1231452604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302556 (or 302554 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1231452604 is about 35092.0589877539. The cubic root of 1231452604 is about 1071.8628869243.

Adding to 1231452604 its reverse (4062541321), we get a palindrome (5293993925).

The spelling of 1231452604 in words is "one billion, two hundred thirty-one million, four hundred fifty-two thousand, six hundred four".