30042145249 has 2 divisors, whose sum is σ = 30042145250. Its totient is φ = 30042145248.

The previous prime is 30042145181. The next prime is 30042145253. The reversal of 30042145249 is 94254124003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18235801600 + 11806343649 = 135040^2 + 108657^2 .

It is a cyclic number.

It is not a de Polignac number, because 30042145249 - 2¹³ = 30042137057 is a prime.

It is not a weakly prime, because it can be changed into another prime (30042146249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15021072624 + 15021072625.

It is an arithmetic number, because the mean of its divisors is an integer number (15021072625).

Almost surely, 2^30042145249 is an apocalyptic number.

It is an amenable number.

30042145249 is a deficient number, since it is larger than the sum of its proper divisors (1).

30042145249 is an equidigital number, since it uses as much as digits as its factorization.

30042145249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The spelling of 30042145249 in words is "thirty billion, forty-two million, one hundred forty-five thousand, two hundred forty-nine".