1428754813 has 4 divisors (see below), whose sum is σ = 1436648668. Its totient is φ = 1420860960.

The previous prime is 1428754801. The next prime is 1428754819. The reversal of 1428754813 is 3184578241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3184578241 = 13 ⋅244967557.

It can be written as a sum of positive squares in 2 ways, for example, as 691795204 + 736959609 = 26302^2 + 27147^2 .

It is a cyclic number.

It is not a de Polignac number, because 1428754813 - 2¹⁷ = 1428623741 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 1428754813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428754819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3946656 + ... + 3947017.

It is an arithmetic number, because the mean of its divisors is an integer number (359162167).

Almost surely, 2^1428754813 is an apocalyptic number.

It is an amenable number.

1428754813 is a deficient number, since it is larger than the sum of its proper divisors (7893855).

1428754813 is an equidigital number, since it uses as much as digits as its factorization.

1428754813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7893854.

The product of its digits is 215040, while the sum is 43.

The square root of 1428754813 is about 37798.8731710351. The cubic root of 1428754813 is about 1126.2960701906.

The spelling of 1428754813 in words is "one billion, four hundred twenty-eight million, seven hundred fifty-four thousand, eight hundred thirteen".