1027245661 has 8 divisors (see below), whose sum is σ = 1110896640. Its totient is φ = 944256432.

The previous prime is 1027245647. The next prime is 1027245671. The reversal of 1027245661 is 1665427201.

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 1027245661 - 2¹⁷ = 1027114589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027245641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162205 + ... + 168418.

It is an arithmetic number, because the mean of its divisors is an integer number (138862080).

Almost surely, 2^1027245661 is an apocalyptic number.

It is an amenable number.

1027245661 is a deficient number, since it is larger than the sum of its proper divisors (83650979).

1027245661 is a wasteful number, since it uses less digits than its factorization.

1027245661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330875.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1027245661 is about 32050.6733314606. The cubic root of 1027245661 is about 1009.0006325622. Note that the first 3 decimals are identical.

The spelling of 1027245661 in words is "one billion, twenty-seven million, two hundred forty-five thousand, six hundred sixty-one".