1425499989 has 8 divisors (see below), whose sum is σ = 1941106560. Its totient is φ = 930113376.

The previous prime is 1425499987. The next prime is 1425499993. The reversal of 1425499989 is 9899945241.

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

It is not a de Polignac number, because 1425499989 - 2¹ = 1425499987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425499987) 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 7 ways as a sum of consecutive naturals, for example, 5054824 + ... + 5055105.

It is an arithmetic number, because the mean of its divisors is an integer number (242638320).

Almost surely, 2^1425499989 is an apocalyptic number.

It is an amenable number.

1425499989 is a deficient number, since it is larger than the sum of its proper divisors (515606571).

1425499989 is a wasteful number, since it uses less digits than its factorization.

1425499989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10109979.

The product of its digits is 8398080, while the sum is 60.

The square root of 1425499989 is about 37755.7941116327. The cubic root of 1425499989 is about 1125.4401540891.

The spelling of 1425499989 in words is "one billion, four hundred twenty-five million, four hundred ninety-nine thousand, nine hundred eighty-nine".