1241340109 has 2 divisors, whose sum is σ = 1241340110. Its totient is φ = 1241340108.

The previous prime is 1241340101. The next prime is 1241340127. The reversal of 1241340109 is 9010431421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644906025 + 596434084 = 25395^2 + 24422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241340109 - 2³ = 1241340101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1241340101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620670054 + 620670055.

It is an arithmetic number, because the mean of its divisors is an integer number (620670055).

Almost surely, 2^1241340109 is an apocalyptic number.

It is an amenable number.

1241340109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241340109 is an equidigital number, since it uses as much as digits as its factorization.

1241340109 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 25.

The square root of 1241340109 is about 35232.6568541176. The cubic root of 1241340109 is about 1074.7239555145.

The spelling of 1241340109 in words is "one billion, two hundred forty-one million, three hundred forty thousand, one hundred nine".