1428696133 has 8 divisors (see below), whose sum is σ = 1553622552. Its totient is φ = 1308312576.

The previous prime is 1428696121. The next prime is 1428696173. The reversal of 1428696133 is 3316968241.

It can be written as a sum of positive squares in 4 ways, for example, as 623101444 + 805594689 = 24962^2 + 28383^2 .

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 1428696133 - 2⁹ = 1428695621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1428696133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428696173) 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, 1135060 + ... + 1136317.

It is an arithmetic number, because the mean of its divisors is an integer number (194202819).

Almost surely, 2^1428696133 is an apocalyptic number.

It is an amenable number.

1428696133 is a deficient number, since it is larger than the sum of its proper divisors (124926419).

1428696133 is a wasteful number, since it uses less digits than its factorization.

1428696133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271431.

The product of its digits is 186624, while the sum is 43.

The square root of 1428696133 is about 37798.0969494497. The cubic root of 1428696133 is about 1126.2806507130.

The spelling of 1428696133 in words is "one billion, four hundred twenty-eight million, six hundred ninety-six thousand, one hundred thirty-three".