1021255241 has 8 divisors (see below), whose sum is σ = 1058142984. Its totient is φ = 984856320.

The previous prime is 1021255237. The next prime is 1021255259. The reversal of 1021255241 is 1425521201.

It can be written as a sum of positive squares in 4 ways, for example, as 380406016 + 640849225 = 19504^2 + 25315^2 .

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 1021255241 - 2² = 1021255237 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021255211) 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, 117950 + ... + 126311.

It is an arithmetic number, because the mean of its divisors is an integer number (132267873).

Almost surely, 2^1021255241 is an apocalyptic number.

It is an amenable number.

1021255241 is a deficient number, since it is larger than the sum of its proper divisors (36887743).

1021255241 is a wasteful number, since it uses less digits than its factorization.

1021255241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244411.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1021255241 is about 31957.0843632519. The cubic root of 1021255241 is about 1007.0354664649.

Adding to 1021255241 its reverse (1425521201), we get a palindrome (2446776442).

The spelling of 1021255241 in words is "one billion, twenty-one million, two hundred fifty-five thousand, two hundred forty-one".