1425280823 has 4 divisors (see below), whose sum is σ = 1452172968. Its totient is φ = 1398388680.

The previous prime is 1425280819. The next prime is 1425280853. The reversal of 1425280823 is 3280825241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3280825241 = 199 ⋅16486559.

It is a cyclic number.

It is not a de Polignac number, because 1425280823 - 2² = 1425280819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425280853) 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, 13445993 + ... + 13446098.

It is an arithmetic number, because the mean of its divisors is an integer number (363043242).

Almost surely, 2^1425280823 is an apocalyptic number.

1425280823 is a deficient number, since it is larger than the sum of its proper divisors (26892145).

1425280823 is an equidigital number, since it uses as much as digits as its factorization.

1425280823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26892144.

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 1425280823 is about 37752.8915846191. The cubic root of 1425280823 is about 1125.3824735417.

The spelling of 1425280823 in words is "one billion, four hundred twenty-five million, two hundred eighty thousand, eight hundred twenty-three".