187660141 has 2 divisors, whose sum is σ = 187660142. Its totient is φ = 187660140.

The previous prime is 187660139. The next prime is 187660201. The reversal of 187660141 is 141066781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107557641 + 80102500 = 10371^2 + 8950^2 .

It is a cyclic number.

It is not a de Polignac number, because 187660141 - 2¹ = 187660139 is a prime.

Together with 187660139, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 187660097 and 187660106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (187660241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93830070 + 93830071.

It is an arithmetic number, because the mean of its divisors is an integer number (93830071).

Almost surely, 2^187660141 is an apocalyptic number.

It is an amenable number.

187660141 is a deficient number, since it is larger than the sum of its proper divisors (1).

187660141 is an equidigital number, since it uses as much as digits as its factorization.

187660141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 187660141 is about 13698.9102121300. The cubic root of 187660141 is about 572.5200221826.

The spelling of 187660141 in words is "one hundred eighty-seven million, six hundred sixty thousand, one hundred forty-one".