30135493 has 2 divisors, whose sum is σ = 30135494. Its totient is φ = 30135492.

The previous prime is 30135491. The next prime is 30135517. The reversal of 30135493 is 39453103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22829284 + 7306209 = 4778^2 + 2703^2 .

It is a cyclic number.

It is not a de Polignac number, because 30135493 - 2¹ = 30135491 is a prime.

Together with 30135491, 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 (30135491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15067746 + 15067747.

It is an arithmetic number, because the mean of its divisors is an integer number (15067747).

Almost surely, 2^30135493 is an apocalyptic number.

It is an amenable number.

30135493 is a deficient number, since it is larger than the sum of its proper divisors (1).

30135493 is an equidigital number, since it uses as much as digits as its factorization.

30135493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 30135493 is about 5489.5804029088. The cubic root of 30135493 is about 311.1903350631.

Adding to 30135493 its reverse (39453103), we get a palindrome (69588596).

It can be divided in two parts, 30135 and 493, that added together give a triangular number (30628 = T₂₄₇).

The spelling of 30135493 in words is "thirty million, one hundred thirty-five thousand, four hundred ninety-three".