1231027 has 16 divisors (see below), whose sum is σ = 1489600. Its totient is φ = 1016064.

The previous prime is 1231003. The next prime is 1231039. The reversal of 1231027 is 7201321.

It is a happy number.

It is not a de Polignac number, because 1231027 - 2¹⁵ = 1198259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231027.

It is not an unprimeable number, because it can be changed into a prime (1231127) 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, 12643 + ... + 12739.

It is an arithmetic number, because the mean of its divisors is an integer number (93100).

2^1231027 is an apocalyptic number.

1231027 is a deficient number, since it is larger than the sum of its proper divisors (258573).

1231027 is an frugal number, since it uses more digits than its factorization.

1231027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 141 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1231027 is about 1109.5165613906. The cubic root of 1231027 is about 107.1739390035.

Adding to 1231027 its reverse (7201321), we get a palindrome (8432348).

The spelling of 1231027 in words is "one million, two hundred thirty-one thousand, twenty-seven".