1027457221 has 16 divisors (see below), whose sum is σ = 1196871808. Its totient is φ = 863784000.

The previous prime is 1027457213. The next prime is 1027457227. The reversal of 1027457221 is 1227547201.

It is a cyclic number.

It is not a de Polignac number, because 1027457221 - 2³ = 1027457213 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 (1027457227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156046 + ... + 162496.

It is an arithmetic number, because the mean of its divisors is an integer number (74804488).

Almost surely, 2^1027457221 is an apocalyptic number.

It is an amenable number.

1027457221 is a deficient number, since it is larger than the sum of its proper divisors (169414587).

1027457221 is an equidigital number, since it uses as much as digits as its factorization.

1027457221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 1027457221 is about 32053.9735602312. The cubic root of 1027457221 is about 1009.0698952938.

The spelling of 1027457221 in words is "one billion, twenty-seven million, four hundred fifty-seven thousand, two hundred twenty-one".