1027748231 has 4 divisors (see below), whose sum is σ = 1028259792. Its totient is φ = 1027236672.

The previous prime is 1027748213. The next prime is 1027748251. The reversal of 1027748231 is 1328477201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1027748231 - 2⁶ = 1027748167 is a prime.

It is a super-2 number, since 2×1027748231² = 2112532852647258722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1027748191 and 1027748200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027748251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252755 + ... + 256788.

It is an arithmetic number, because the mean of its divisors is an integer number (257064948).

Almost surely, 2^1027748231 is an apocalyptic number.

1027748231 is a deficient number, since it is larger than the sum of its proper divisors (511561).

1027748231 is an equidigital number, since it uses as much as digits as its factorization.

1027748231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511560.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 1027748231 is about 32058.5126136569. The cubic root of 1027748231 is about 1009.1651536672.

The spelling of 1027748231 in words is "one billion, twenty-seven million, seven hundred forty-eight thousand, two hundred thirty-one".