30641641 has 2 divisors, whose sum is σ = 30641642. Its totient is φ = 30641640.

The previous prime is 30641629. The next prime is 30641659. The reversal of 30641641 is 14614603.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29387241 + 1254400 = 5421^2 + 1120^2 .

It is a cyclic number.

It is not a de Polignac number, because 30641641 - 2²¹ = 28544489 is a prime.

It is not a weakly prime, because it can be changed into another prime (30641441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15320820 + 15320821.

It is an arithmetic number, because the mean of its divisors is an integer number (15320821).

Almost surely, 2^30641641 is an apocalyptic number.

It is an amenable number.

30641641 is a deficient number, since it is larger than the sum of its proper divisors (1).

30641641 is an equidigital number, since it uses as much as digits as its factorization.

30641641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 30641641 is about 5535.4892286048. The cubic root of 30641641 is about 312.9228953989.

The spelling of 30641641 in words is "thirty million, six hundred forty-one thousand, six hundred forty-one".