1309180141 has 2 divisors, whose sum is σ = 1309180142. Its totient is φ = 1309180140.

The previous prime is 1309180069. The next prime is 1309180153. The reversal of 1309180141 is 1410819031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1308920041 + 260100 = 36179^2 + 510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1309180141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1309184141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654590070 + 654590071.

It is an arithmetic number, because the mean of its divisors is an integer number (654590071).

Almost surely, 2^1309180141 is an apocalyptic number.

It is an amenable number.

1309180141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1309180141 is an equidigital number, since it uses as much as digits as its factorization.

1309180141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 1309180141 is about 36182.5944481597. The cubic root of 1309180141 is about 1093.9558699238.

Adding to 1309180141 its reverse (1410819031), we get a palindrome (2719999172).

The spelling of 1309180141 in words is "one billion, three hundred nine million, one hundred eighty thousand, one hundred forty-one".