1231833425 has 24 divisors (see below), whose sum is σ = 1611861120. Its totient is φ = 931990400.

The previous prime is 1231833409. The next prime is 1231833431. The reversal of 1231833425 is 5243381321.

It is not a de Polignac number, because 1231833425 - 2⁴ = 1231833409 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1231833391 and 1231833400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39140 + ... + 63210.

It is an arithmetic number, because the mean of its divisors is an integer number (67160880).

Almost surely, 2^1231833425 is an apocalyptic number.

It is an amenable number.

1231833425 is a deficient number, since it is larger than the sum of its proper divisors (380027695).

1231833425 is a wasteful number, since it uses less digits than its factorization.

1231833425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24193 (or 24188 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 1231833425 is about 35097.4845964779. The cubic root of 1231833425 is about 1071.9733650772.

The spelling of 1231833425 in words is "one billion, two hundred thirty-one million, eight hundred thirty-three thousand, four hundred twenty-five".