30841513 has 2 divisors, whose sum is σ = 30841514. Its totient is φ = 30841512.

The previous prime is 30841469. The next prime is 30841523. The reversal of 30841513 is 31514803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24730729 + 6110784 = 4973^2 + 2472^2 .

It is a cyclic number.

It is not a de Polignac number, because 30841513 - 2²¹ = 28744361 is a prime.

It is not a weakly prime, because it can be changed into another prime (30841523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15420756 + 15420757.

It is an arithmetic number, because the mean of its divisors is an integer number (15420757).

Almost surely, 2^30841513 is an apocalyptic number.

It is an amenable number.

30841513 is a deficient number, since it is larger than the sum of its proper divisors (1).

30841513 is an equidigital number, since it uses as much as digits as its factorization.

30841513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 30841513 is about 5553.5135725052. The cubic root of 30841513 is about 313.6018083995.

The spelling of 30841513 in words is "thirty million, eight hundred forty-one thousand, five hundred thirteen".