1429825665 has 32 divisors (see below), whose sum is σ = 2332743552. Its totient is φ = 747648000.

The previous prime is 1429825577. The next prime is 1429825693. The reversal of 1429825665 is 5665289241.

It is not a de Polignac number, because 1429825665 - 2¹⁴ = 1429809281 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 300505 + ... + 305225.

It is an arithmetic number, because the mean of its divisors is an integer number (72898236).

Almost surely, 2^1429825665 is an apocalyptic number.

1429825665 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1429825665 is a deficient number, since it is larger than the sum of its proper divisors (902917887).

1429825665 is a wasteful number, since it uses less digits than its factorization.

1429825665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121.

The product of its digits is 1036800, while the sum is 48.

The square root of 1429825665 is about 37813.0356490986. The cubic root of 1429825665 is about 1126.5773862920.

The spelling of 1429825665 in words is "one billion, four hundred twenty-nine million, eight hundred twenty-five thousand, six hundred sixty-five".