1425775839 has 16 divisors (see below), whose sum is σ = 2077793280. Its totient is φ = 865745280.

The previous prime is 1425775837. The next prime is 1425775853. The reversal of 1425775839 is 9385775241.

It is not a de Polignac number, because 1425775839 - 2¹ = 1425775837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a junction number, because it is equal to n+sod(n) for n = 1425775791 and 1425775800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425775831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449329 + ... + 452490.

It is an arithmetic number, because the mean of its divisors is an integer number (129862080).

Almost surely, 2^1425775839 is an apocalyptic number.

1425775839 is a deficient number, since it is larger than the sum of its proper divisors (652017441).

1425775839 is a wasteful number, since it uses less digits than its factorization.

1425775839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901870.

The product of its digits is 2116800, while the sum is 51.

The square root of 1425775839 is about 37759.4470166076. The cubic root of 1425775839 is about 1125.5127444423.

The spelling of 1425775839 in words is "one billion, four hundred twenty-five million, seven hundred seventy-five thousand, eight hundred thirty-nine".