1240104191 has 6 divisors (see below), whose sum is σ = 1281398976. Its totient is φ = 1200099900.

The previous prime is 1240104167. The next prime is 1240104193. The reversal of 1240104191 is 1914010421.

It is not a de Polignac number, because 1240104191 - 2⁶ = 1240104127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240104193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 644255 + ... + 646176.

It is an arithmetic number, because the mean of its divisors is an integer number (213566496).

Almost surely, 2^1240104191 is an apocalyptic number.

1240104191 is a deficient number, since it is larger than the sum of its proper divisors (41294785).

1240104191 is an equidigital number, since it uses as much as digits as its factorization.

1240104191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290493 (or 1290462 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 1240104191 is about 35215.1131050292. The cubic root of 1240104191 is about 1074.3671605370.

The spelling of 1240104191 in words is "one billion, two hundred forty million, one hundred four thousand, one hundred ninety-one".