1425722105 has 4 divisors (see below), whose sum is σ = 1710866532. Its totient is φ = 1140577680.

The previous prime is 1425722063. The next prime is 1425722141. The reversal of 1425722105 is 5012275241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5012275241 = 10193 ⋅491737.

It can be written as a sum of positive squares in 2 ways, for example, as 197009296 + 1228712809 = 14036^2 + 35053^2 .

It is not a de Polignac number, because 1425722105 - 2⁸ = 1425721849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142572206 + ... + 142572215.

It is an arithmetic number, because the mean of its divisors is an integer number (427716633).

Almost surely, 2^1425722105 is an apocalyptic number.

It is an amenable number.

1425722105 is a deficient number, since it is larger than the sum of its proper divisors (285144427).

1425722105 is an equidigital number, since it uses as much as digits as its factorization.

1425722105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285144426.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 1425722105 is about 37758.7354793563. The cubic root of 1425722105 is about 1125.4986049916.

Adding to 1425722105 its reverse (5012275241), we get a palindrome (6437997346).

The spelling of 1425722105 in words is "one billion, four hundred twenty-five million, seven hundred twenty-two thousand, one hundred five".