1425135389 has 2 divisors, whose sum is σ = 1425135390. Its totient is φ = 1425135388.

The previous prime is 1425135377. The next prime is 1425135463. The reversal of 1425135389 is 9835315241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1404975289 + 20160100 = 37483^2 + 4490^2 .

It is a cyclic number.

It is not a de Polignac number, because 1425135389 - 2¹⁶ = 1425069853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1425135329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712567694 + 712567695.

It is an arithmetic number, because the mean of its divisors is an integer number (712567695).

Almost surely, 2^1425135389 is an apocalyptic number.

It is an amenable number.

1425135389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425135389 is an equidigital number, since it uses as much as digits as its factorization.

1425135389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 41.

The square root of 1425135389 is about 37750.9654048741. The cubic root of 1425135389 is about 1125.3441946662.

The spelling of 1425135389 in words is "one billion, four hundred twenty-five million, one hundred thirty-five thousand, three hundred eighty-nine".