1231027396 has 27 divisors (see below), whose sum is σ = 2202365613. Its totient is φ = 602075760.

The previous prime is 1231027373. The next prime is 1231027417. The reversal of 1231027396 is 6937201321.

The square root of 1231027396 is 35086.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 887444100 + 343583296 = 29790^2 + 18536^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 3718951 + ... + 3719281.

Almost surely, 2^1231027396 is an apocalyptic number.

1231027396 is the 35086-th square number.

It is an amenable number.

1231027396 is a deficient number, since it is larger than the sum of its proper divisors (971338217).

1231027396 is an frugal number, since it uses more digits than its factorization.

1231027396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 34.

The cubic root of 1231027396 is about 1071.7395049552.

The spelling of 1231027396 in words is "one billion, two hundred thirty-one million, twenty-seven thousand, three hundred ninety-six".