1428013 has 2 divisors, whose sum is σ = 1428014. Its totient is φ = 1428012.

The previous prime is 1427999. The next prime is 1428029. The reversal of 1428013 is 3108241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1408969 + 19044 = 1187^2 + 138^2 .

It is a cyclic number.

It is not a de Polignac number, because 1428013 - 2⁹ = 1427501 is a prime.

It is a super-2 number, since 2×1428013² = 4078442256338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1428113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714006 + 714007.

It is an arithmetic number, because the mean of its divisors is an integer number (714007).

2^1428013 is an apocalyptic number.

It is an amenable number.

1428013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428013 is an equidigital number, since it uses as much as digits as its factorization.

1428013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1428013 is about 1194.9949790689. The cubic root of 1428013 is about 112.6101111219.

The spelling of 1428013 in words is "one million, four hundred twenty-eight thousand, thirteen".