30540529 has 2 divisors, whose sum is σ = 30540530. Its totient is φ = 30540528.

The previous prime is 30540493. The next prime is 30540533. The reversal of 30540529 is 92504503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28515600 + 2024929 = 5340^2 + 1423^2 .

It is a cyclic number.

It is not a de Polignac number, because 30540529 - 2⁷ = 30540401 is a prime.

It is a super-4 number, since 4×30540529⁴ (a number of 31 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30540497 and 30540506.

It is not a weakly prime, because it can be changed into another prime (30540539) 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, 15270264 + 15270265.

It is an arithmetic number, because the mean of its divisors is an integer number (15270265).

Almost surely, 2^30540529 is an apocalyptic number.

It is an amenable number.

30540529 is a deficient number, since it is larger than the sum of its proper divisors (1).

30540529 is an equidigital number, since it uses as much as digits as its factorization.

30540529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 30540529 is about 5526.3486136870. The cubic root of 30540529 is about 312.5783193565.

The spelling of 30540529 in words is "thirty million, five hundred forty thousand, five hundred twenty-nine".