1241665151 has 2 divisors, whose sum is σ = 1241665152. Its totient is φ = 1241665150.

The previous prime is 1241665147. The next prime is 1241665163. The reversal of 1241665151 is 1515661421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1241665151 - 2² = 1241665147 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241662151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620832575 + 620832576.

It is an arithmetic number, because the mean of its divisors is an integer number (620832576).

Almost surely, 2^1241665151 is an apocalyptic number.

1241665151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241665151 is an equidigital number, since it uses as much as digits as its factorization.

1241665151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 32.

The square root of 1241665151 is about 35237.2693465314. The cubic root of 1241665151 is about 1074.8177519783.

The spelling of 1241665151 in words is "one billion, two hundred forty-one million, six hundred sixty-five thousand, one hundred fifty-one".