30540259 has 2 divisors, whose sum is σ = 30540260. Its totient is φ = 30540258.

The previous prime is 30540253. The next prime is 30540287. The reversal of 30540259 is 95204503.

It is an a-pointer prime, because the next prime (30540287) can be obtained adding 30540259 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30540259 - 2⁵ = 30540227 is a prime.

It is not a weakly prime, because it can be changed into another prime (30540253) 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, 15270129 + 15270130.

It is an arithmetic number, because the mean of its divisors is an integer number (15270130).

Almost surely, 2^30540259 is an apocalyptic number.

30540259 is a deficient number, since it is larger than the sum of its proper divisors (1).

30540259 is an equidigital number, since it uses as much as digits as its factorization.

30540259 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 30540259 is about 5526.3241852067. The cubic root of 30540259 is about 312.5773982155.

The spelling of 30540259 in words is "thirty million, five hundred forty thousand, two hundred fifty-nine".