1241310445 has 4 divisors (see below), whose sum is σ = 1489572540. Its totient is φ = 993048352.

The previous prime is 1241310443. The next prime is 1241310457. The reversal of 1241310445 is 5440131421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 169468324 + 1071842121 = 13018^2 + 32739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1241310445 - 2¹ = 1241310443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241310443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124131040 + ... + 124131049.

It is an arithmetic number, because the mean of its divisors is an integer number (372393135).

Almost surely, 2^1241310445 is an apocalyptic number.

It is an amenable number.

1241310445 is a deficient number, since it is larger than the sum of its proper divisors (248262095).

1241310445 is an equidigital number, since it uses as much as digits as its factorization.

1241310445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248262094.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1241310445 is about 35232.2358785247. The cubic root of 1241310445 is about 1074.7153946414.

Adding to 1241310445 its reverse (5440131421), we get a palindrome (6681441866).

The spelling of 1241310445 in words is "one billion, two hundred forty-one million, three hundred ten thousand, four hundred forty-five".