30655241 has 2 divisors, whose sum is σ = 30655242. Its totient is φ = 30655240.

The previous prime is 30655231. The next prime is 30655243. The reversal of 30655241 is 14255603.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29203216 + 1452025 = 5404^2 + 1205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30655241 is a prime.

Together with 30655243, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30655241.

It is not a weakly prime, because it can be changed into another prime (30655243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15327620 + 15327621.

It is an arithmetic number, because the mean of its divisors is an integer number (15327621).

Almost surely, 2^30655241 is an apocalyptic number.

30655241 is the 2960-th centered heptagonal number.

It is an amenable number.

30655241 is a deficient number, since it is larger than the sum of its proper divisors (1).

30655241 is an equidigital number, since it uses as much as digits as its factorization.

30655241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 30655241 is about 5536.7175293670. The cubic root of 30655241 is about 312.9691844984.

The spelling of 30655241 in words is "thirty million, six hundred fifty-five thousand, two hundred forty-one".