13430057 has 4 divisors (see below), whose sum is σ = 13439316. Its totient is φ = 13420800.

The previous prime is 13430009. The next prime is 13430063. The reversal of 13430057 is 75003431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 75003431 = 19 ⋅3947549.

It can be written as a sum of positive squares in 2 ways, for example, as 2808976 + 10621081 = 1676^2 + 3259^2 .

It is a cyclic number.

It is not a de Polignac number, because 13430057 - 2¹⁶ = 13364521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13430077) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1928 + ... + 5529.

It is an arithmetic number, because the mean of its divisors is an integer number (3359829).

Almost surely, 2^13430057 is an apocalyptic number.

It is an amenable number.

13430057 is a deficient number, since it is larger than the sum of its proper divisors (9259).

13430057 is an equidigital number, since it uses as much as digits as its factorization.

13430057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9258.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 13430057 is about 3664.7042172596. The cubic root of 13430057 is about 237.6982322809.

Adding to 13430057 its reverse (75003431), we get a palindrome (88433488).

The spelling of 13430057 in words is "thirteen million, four hundred thirty thousand, fifty-seven".