1027639148 has 6 divisors (see below), whose sum is σ = 1798368516. Its totient is φ = 513819572.

The previous prime is 1027639141. The next prime is 1027639153. The reversal of 1027639148 is 8419367201.

It is not an unprimeable number, because it can be changed into a prime (1027639141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128454890 + ... + 128454897.

It is an arithmetic number, because the mean of its divisors is an integer number (299728086).

Almost surely, 2^1027639148 is an apocalyptic number.

It is an amenable number.

1027639148 is a deficient number, since it is larger than the sum of its proper divisors (770729368).

1027639148 is a wasteful number, since it uses less digits than its factorization.

1027639148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256909791 (or 256909789 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 1027639148 is about 32056.8112575159. The cubic root of 1027639148 is about 1009.1294488600.

The spelling of 1027639148 in words is "one billion, twenty-seven million, six hundred thirty-nine thousand, one hundred forty-eight".