1425442985 has 8 divisors (see below), whose sum is σ = 1800559680. Its totient is φ = 1080335664.

The previous prime is 1425442981. The next prime is 1425443011. The reversal of 1425442985 is 5892445241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1425442985 - 2² = 1425442981 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1425442981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7502237 + ... + 7502426.

It is an arithmetic number, because the mean of its divisors is an integer number (225069960).

Almost surely, 2^1425442985 is an apocalyptic number.

It is an amenable number.

1425442985 is a deficient number, since it is larger than the sum of its proper divisors (375116695).

1425442985 is a wasteful number, since it uses less digits than its factorization.

1425442985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15004687.

The product of its digits is 460800, while the sum is 44.

The square root of 1425442985 is about 37755.0392000856. The cubic root of 1425442985 is about 1125.4251522310.

The spelling of 1425442985 in words is "one billion, four hundred twenty-five million, four hundred forty-two thousand, nine hundred eighty-five".