1241678281 has 8 divisors (see below), whose sum is σ = 1253443464. Its totient is φ = 1229967360.

The previous prime is 1241678267. The next prime is 1241678293. The reversal of 1241678281 is 1828761421.

It can be written as a sum of positive squares in 4 ways, for example, as 173056 + 1241505225 = 416^2 + 35235^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1241678281 - 2¹⁵ = 1241645513 is a prime.

It is a super-2 number, since 2×1241678281² = 3083529907014229922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1241678201) 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, 33171 + ... + 59863.

It is an arithmetic number, because the mean of its divisors is an integer number (156680433).

Almost surely, 2^1241678281 is an apocalyptic number.

It is an amenable number.

1241678281 is a deficient number, since it is larger than the sum of its proper divisors (11765183).

1241678281 is a wasteful number, since it uses less digits than its factorization.

1241678281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27131.

The product of its digits is 43008, while the sum is 40.

The square root of 1241678281 is about 35237.4556544595. The cubic root of 1241678281 is about 1074.8215405218.

The spelling of 1241678281 in words is "one billion, two hundred forty-one million, six hundred seventy-eight thousand, two hundred eighty-one".