1241263578 has 16 divisors (see below), whose sum is σ = 2613186720. Its totient is φ = 391977936.

The previous prime is 1241263547. The next prime is 1241263579. The reversal of 1241263578 is 8753621421.

It is not an unprimeable number, because it can be changed into a prime (1241263579) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5444025 + ... + 5444252.

It is an arithmetic number, because the mean of its divisors is an integer number (163324170).

Almost surely, 2^1241263578 is an apocalyptic number.

1241263578 is an abundant number, since it is smaller than the sum of its proper divisors (1371923142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1241263578 is a wasteful number, since it uses less digits than its factorization.

1241263578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10888301.

The product of its digits is 80640, while the sum is 39.

The square root of 1241263578 is about 35231.5707569220. The cubic root of 1241263578 is about 1074.7018687958.

Adding to 1241263578 its reverse (8753621421), we get a palindrome (9994884999).

The spelling of 1241263578 in words is "one billion, two hundred forty-one million, two hundred sixty-three thousand, five hundred seventy-eight".