1241004187 has 2 divisors, whose sum is σ = 1241004188. Its totient is φ = 1241004186.

The previous prime is 1241004181. The next prime is 1241004227. The reversal of 1241004187 is 7814001421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1241004187 - 2³ = 1241004179 is a prime.

It is not a weakly prime, because it can be changed into another prime (1241004181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620502093 + 620502094.

It is an arithmetic number, because the mean of its divisors is an integer number (620502094).

Almost surely, 2^1241004187 is an apocalyptic number.

1241004187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241004187 is an equidigital number, since it uses as much as digits as its factorization.

1241004187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 1241004187 is about 35227.8893350141. The cubic root of 1241004187 is about 1074.6270022329.

The spelling of 1241004187 in words is "one billion, two hundred forty-one million, four thousand, one hundred eighty-seven".