30457069 has 2 divisors, whose sum is σ = 30457070. Its totient is φ = 30457068.

The previous prime is 30457067. The next prime is 30457079. The reversal of 30457069 is 96075403.

30457069 is nontrivially palindromic in base 13.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30140100 + 316969 = 5490^2 + 563^2 .

It is an emirp because it is prime and its reverse (96075403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30457069 - 2¹ = 30457067 is a prime.

It is a super-2 number, since 2×30457069² = 1855266104141522, which contains 22 as substring.

Together with 30457067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30457067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15228534 + 15228535.

It is an arithmetic number, because the mean of its divisors is an integer number (15228535).

Almost surely, 2^30457069 is an apocalyptic number.

It is an amenable number.

30457069 is a deficient number, since it is larger than the sum of its proper divisors (1).

30457069 is an equidigital number, since it uses as much as digits as its factorization.

30457069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 30457069 is about 5518.7923497809. The cubic root of 30457069 is about 312.2933255309.

The spelling of 30457069 in words is "thirty million, four hundred fifty-seven thousand, sixty-nine".