30541840169 has 2 divisors, whose sum is σ = 30541840170. Its totient is φ = 30541840168.

The previous prime is 30541840163. The next prime is 30541840193. The reversal of 30541840169 is 96104814503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25404534544 + 5137305625 = 159388^2 + 71675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30541840169 is a prime.

It is a super-2 number, since 2×30541840169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30541840163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15270920084 + 15270920085.

It is an arithmetic number, because the mean of its divisors is an integer number (15270920085).

Almost surely, 2^30541840169 is an apocalyptic number.

It is an amenable number.

30541840169 is a deficient number, since it is larger than the sum of its proper divisors (1).

30541840169 is an equidigital number, since it uses as much as digits as its factorization.

30541840169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 30541840169 in words is "thirty billion, five hundred forty-one million, eight hundred forty thousand, one hundred sixty-nine".