1240365141 has 6 divisors (see below), whose sum is σ = 1791638550. Its totient is φ = 826910088.

The previous prime is 1240365131. The next prime is 1240365151. The reversal of 1240365141 is 1415630421.

It is a happy number.

1240365141 is a `hidden beast` number, since 1 + 2 + 4 + 0 + 3 + 651 + 4 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1240365131) and next prime (1240365151).

It can be written as a sum of positive squares in only one way, i.e., 758782116 + 481583025 = 27546^2 + 21945^2 .

It is not a de Polignac number, because 1240365141 - 2¹¹ = 1240363093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240365121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68909166 + ... + 68909183.

It is an arithmetic number, because the mean of its divisors is an integer number (298606425).

Almost surely, 2^1240365141 is an apocalyptic number.

It is an amenable number.

1240365141 is a deficient number, since it is larger than the sum of its proper divisors (551273409).

1240365141 is a wasteful number, since it uses less digits than its factorization.

1240365141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137818355 (or 137818352 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1240365141 is about 35218.8179954978. The cubic root of 1240365141 is about 1074.4425134657.

Adding to 1240365141 its reverse (1415630421), we get a palindrome (2655995562).

The spelling of 1240365141 in words is "one billion, two hundred forty million, three hundred sixty-five thousand, one hundred forty-one".