1425206171 has 4 divisors (see below), whose sum is σ = 1427089632. Its totient is φ = 1423322712.

The previous prime is 1425206143. The next prime is 1425206173. The reversal of 1425206171 is 1716025241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1425206171 - 2¹⁰ = 1425205147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425206173) 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 in 3 ways as a sum of consecutive naturals, for example, 940595 + ... + 942108.

It is an arithmetic number, because the mean of its divisors is an integer number (356772408).

Almost surely, 2^1425206171 is an apocalyptic number.

1425206171 is a deficient number, since it is larger than the sum of its proper divisors (1883461).

1425206171 is an equidigital number, since it uses as much as digits as its factorization.

1425206171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1883460.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1425206171 is about 37751.9028791927. The cubic root of 1425206171 is about 1125.3628251286.

The spelling of 1425206171 in words is "one billion, four hundred twenty-five million, two hundred six thousand, one hundred seventy-one".