1241456278 has 4 divisors (see below), whose sum is σ = 1862184420. Its totient is φ = 620728138.

The previous prime is 1241456239. The next prime is 1241456309. The reversal of 1241456278 is 8726541421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8726541421 = 13 ⋅671272417.

It is a super-2 number, since 2×1241456278² = 3082427380371226568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 1241456278.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 310364068 + ... + 310364071.

It is an arithmetic number, because the mean of its divisors is an integer number (465546105).

Almost surely, 2^1241456278 is an apocalyptic number.

1241456278 is a deficient number, since it is larger than the sum of its proper divisors (620728142).

1241456278 is an equidigital number, since it uses as much as digits as its factorization.

1241456278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620728141.

The product of its digits is 107520, while the sum is 40.

The square root of 1241456278 is about 35234.3054139002. The cubic root of 1241456278 is about 1074.7574799590.

Adding to 1241456278 its reverse (8726541421), we get a palindrome (9967997699).

The spelling of 1241456278 in words is "one billion, two hundred forty-one million, four hundred fifty-six thousand, two hundred seventy-eight".