1425505171 has 2 divisors, whose sum is σ = 1425505172. Its totient is φ = 1425505170.

The previous prime is 1425505129. The next prime is 1425505259. The reversal of 1425505171 is 1715055241.

It is a weak prime.

It is an emirp because it is prime and its reverse (1715055241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1425505171 - 2⁷ = 1425505043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1425505871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712752585 + 712752586.

It is an arithmetic number, because the mean of its divisors is an integer number (712752586).

Almost surely, 2^1425505171 is an apocalyptic number.

1425505171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1425505171 is an equidigital number, since it uses as much as digits as its factorization.

1425505171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7000, while the sum is 31.

The square root of 1425505171 is about 37755.8627367989. The cubic root of 1425505171 is about 1125.4415178267.

The spelling of 1425505171 in words is "one billion, four hundred twenty-five million, five hundred five thousand, one hundred seventy-one".