1232492971329 has 45 divisors (see below), whose sum is σ = 1851835280889. Its totient is φ = 816912643680.

The previous prime is 1232492971327. The next prime is 1232492971393. The reversal of 1232492971329 is 9231792942321.

The square root of 1232492971329 is 1110177.

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

1232492971329 is a `hidden beast` number, since 1 + 2 + 3 + 24 + 9 + 297 + 1 + 329 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 33362849025 + 1199130122304 = 182655^2 + 1095048^2 .

It is not a de Polignac number, because 1232492971329 - 2¹ = 1232492971327 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1232492971327) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 2927536539 + ... + 2927536959.

Almost surely, 2^{1232492971329} is an apocalyptic number.

1232492971329 is the 1110177-th square number.

1232492971329 is the 555089-th centered octagonal number.

It is an amenable number.

1232492971329 is a deficient number, since it is larger than the sum of its proper divisors (619342309560).

1232492971329 is an frugal number, since it uses more digits than its factorization.

1232492971329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440 (or 717 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The spelling of 1232492971329 in words is "one trillion, two hundred thirty-two billion, four hundred ninety-two million, nine hundred seventy-one thousand, three hundred twenty-nine".