1425234637 has 2 divisors, whose sum is σ = 1425234638. Its totient is φ = 1425234636.

The previous prime is 1425234563. The next prime is 1425234647. The reversal of 1425234637 is 7364325241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1012576041 + 412658596 = 31821^2 + 20314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425234637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1425234596 and 1425234605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1425234647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712617318 + 712617319.

It is an arithmetic number, because the mean of its divisors is an integer number (712617319).

Almost surely, 2^1425234637 is an apocalyptic number.

It is an amenable number.

1425234637 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425234637 is an equidigital number, since it uses as much as digits as its factorization.

1425234637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 37.

The square root of 1425234637 is about 37752.2798914185. The cubic root of 1425234637 is about 1125.3703174633.

Adding to 1425234637 its reverse (7364325241), we get a palindrome (8789559878).

The spelling of 1425234637 in words is "one billion, four hundred twenty-five million, two hundred thirty-four thousand, six hundred thirty-seven".