1283825429 has 4 divisors (see below), whose sum is σ = 1284374784. Its totient is φ = 1283276076.

The previous prime is 1283825423. The next prime is 1283825437. The reversal of 1283825429 is 9245283821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9245283821 = 211 ⋅43816511.

It is a cyclic number.

It is not a de Polignac number, because 1283825429 - 2²⁰ = 1282776853 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1283825429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283825423) 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, 271157 + ... + 275850.

It is an arithmetic number, because the mean of its divisors is an integer number (321093696).

Almost surely, 2^1283825429 is an apocalyptic number.

It is an amenable number.

1283825429 is a deficient number, since it is larger than the sum of its proper divisors (549355).

1283825429 is an equidigital number, since it uses as much as digits as its factorization.

1283825429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549354.

The product of its digits is 276480, while the sum is 44.

The square root of 1283825429 is about 35830.5097507697. The cubic root of 1283825429 is about 1086.8476179504.

The spelling of 1283825429 in words is "one billion, two hundred eighty-three million, eight hundred twenty-five thousand, four hundred twenty-nine".