1425289986 has 32 divisors (see below), whose sum is σ = 3177532800. Its totient is φ = 473563440.

The previous prime is 1425289981. The next prime is 1425289991. The reversal of 1425289986 is 6899825241.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1425289981) and next prime (1425289991).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1425289981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25641 + ... + 59228.

It is an arithmetic number, because the mean of its divisors is an integer number (99297900).

Almost surely, 2^1425289986 is an apocalyptic number.

1425289986 is an abundant number, since it is smaller than the sum of its proper divisors (1752242814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1425289986 is a wasteful number, since it uses less digits than its factorization.

1425289986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85191 (or 85185 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 1425289986 is about 37753.0129393668. The cubic root of 1425289986 is about 1125.3848851969.

The spelling of 1425289986 in words is "one billion, four hundred twenty-five million, two hundred eighty-nine thousand, nine hundred eighty-six".