1425339637 has 2 divisors, whose sum is σ = 1425339638. Its totient is φ = 1425339636.

The previous prime is 1425339613. The next prime is 1425339649. The reversal of 1425339637 is 7369335241.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1424760516 + 579121 = 37746^2 + 761^2 .

It is an emirp because it is prime and its reverse (7369335241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425339637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1425339593 and 1425339602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1425339677) by changing a digit.

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 as a sum of consecutive naturals, namely, 712669818 + 712669819.

It is an arithmetic number, because the mean of its divisors is an integer number (712669819).

Almost surely, 2^1425339637 is an apocalyptic number.

It is an amenable number.

1425339637 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425339637 is an equidigital number, since it uses as much as digits as its factorization.

1425339637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 408240, while the sum is 43.

The square root of 1425339637 is about 37753.6705102961. The cubic root of 1425339637 is about 1125.3979529086.

The spelling of 1425339637 in words is "one billion, four hundred twenty-five million, three hundred thirty-nine thousand, six hundred thirty-seven".