1240140041 has 4 divisors (see below), whose sum is σ = 1417302912. Its totient is φ = 1062977172.

The previous prime is 1240140037. The next prime is 1240140043. The reversal of 1240140041 is 1400410421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1240140041 - 2² = 1240140037 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240140043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88581425 + ... + 88581438.

It is an arithmetic number, because the mean of its divisors is an integer number (354325728).

Almost surely, 2^1240140041 is an apocalyptic number.

It is an amenable number.

1240140041 is a deficient number, since it is larger than the sum of its proper divisors (177162871).

1240140041 is an equidigital number, since it uses as much as digits as its factorization.

1240140041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177162870.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1240140041 is about 35215.6221157599. The cubic root of 1240140041 is about 1074.3775133477.

Adding to 1240140041 its reverse (1400410421), we get a palindrome (2640550462).

The spelling of 1240140041 in words is "one billion, two hundred forty million, one hundred forty thousand, forty-one".