1240241141 has 4 divisors (see below), whose sum is σ = 1247093484. Its totient is φ = 1233388800.

The previous prime is 1240241129. The next prime is 1240241179. The reversal of 1240241141 is 1411420421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1411420421 = 31 ⋅45529691.

It can be written as a sum of positive squares in 2 ways, for example, as 49646116 + 1190595025 = 7046^2 + 34505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240241141 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240246141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3425900 + ... + 3426261.

It is an arithmetic number, because the mean of its divisors is an integer number (311773371).

Almost surely, 2^1240241141 is an apocalyptic number.

It is an amenable number.

1240241141 is a deficient number, since it is larger than the sum of its proper divisors (6852343).

1240241141 is an equidigital number, since it uses as much as digits as its factorization.

1240241141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6852342.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1240241141 is about 35217.0575289873. The cubic root of 1240241141 is about 1074.4067080653.

Adding to 1240241141 its reverse (1411420421), we get a palindrome (2651661562).

The spelling of 1240241141 in words is "one billion, two hundred forty million, two hundred forty-one thousand, one hundred forty-one".