1425144401 has 8 divisors (see below), whose sum is σ = 1456689960. Its totient is φ = 1393771392.

The previous prime is 1425144389. The next prime is 1425144443. The reversal of 1425144401 is 1044415241.

It can be written as a sum of positive squares in 4 ways, for example, as 6400 + 1425138001 = 80^2 + 37751^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425144401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1425144491) 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 7 ways as a sum of consecutive naturals, for example, 26366 + ... + 59543.

It is an arithmetic number, because the mean of its divisors is an integer number (182086245).

Almost surely, 2^1425144401 is an apocalyptic number.

It is an amenable number.

1425144401 is a deficient number, since it is larger than the sum of its proper divisors (31545559).

1425144401 is an equidigital number, since it uses as much as digits as its factorization.

1425144401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86275.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 1425144401 is about 37751.0847658713. The cubic root of 1425144401 is about 1125.3465667403.

Adding to 1425144401 its reverse (1044415241), we get a palindrome (2469559642).

The spelling of 1425144401 in words is "one billion, four hundred twenty-five million, one hundred forty-four thousand, four hundred one".