30512429 has 2 divisors, whose sum is σ = 30512430. Its totient is φ = 30512428.

The previous prime is 30512371. The next prime is 30512453. The reversal of 30512429 is 92421503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18966025 + 11546404 = 4355^2 + 3398^2 .

It is a cyclic number.

It is not a de Polignac number, because 30512429 - 2⁸ = 30512173 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30512398 and 30512407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30512129) 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 as a sum of consecutive naturals, namely, 15256214 + 15256215.

It is an arithmetic number, because the mean of its divisors is an integer number (15256215).

Almost surely, 2^30512429 is an apocalyptic number.

It is an amenable number.

30512429 is a deficient number, since it is larger than the sum of its proper divisors (1).

30512429 is an equidigital number, since it uses as much as digits as its factorization.

30512429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 30512429 is about 5523.8056627655. The cubic root of 30512429 is about 312.4824233314.

The spelling of 30512429 in words is "thirty million, five hundred twelve thousand, four hundred twenty-nine".