1232356385 has 16 divisors (see below), whose sum is σ = 1609010256. Its totient is φ = 900661248.

The previous prime is 1232356379. The next prime is 1232356387. The reversal of 1232356385 is 5836532321.

It can be written as a sum of positive squares in 8 ways, for example, as 460016704 + 772339681 = 21448^2 + 27791^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232356385 - 2⁴ = 1232356369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1232356387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91424 + ... + 104033.

It is an arithmetic number, because the mean of its divisors is an integer number (100563141).

Almost surely, 2^1232356385 is an apocalyptic number.

It is an amenable number.

1232356385 is a deficient number, since it is larger than the sum of its proper divisors (376653871).

1232356385 is a wasteful number, since it uses less digits than its factorization.

1232356385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195572.

The product of its digits is 129600, while the sum is 38.

The square root of 1232356385 is about 35104.9339124859. The cubic root of 1232356385 is about 1072.1250413960.

The spelling of 1232356385 in words is "one billion, two hundred thirty-two million, three hundred fifty-six thousand, three hundred eighty-five".