1231793914 has 16 divisors (see below), whose sum is σ = 2038354920. Its totient is φ = 554653440.

The previous prime is 1231793891. The next prime is 1231793999. The reversal of 1231793914 is 4193971321.

It can be written as a sum of positive squares in 4 ways, for example, as 703575625 + 528218289 = 26525^2 + 22983^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576699 + ... + 578830.

Almost surely, 2^1231793914 is an apocalyptic number.

1231793914 is a deficient number, since it is larger than the sum of its proper divisors (806561006).

1231793914 is a wasteful number, since it uses less digits than its factorization.

1231793914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155585.

The product of its digits is 40824, while the sum is 40.

The square root of 1231793914 is about 35096.9217168686. The cubic root of 1231793914 is about 1071.9619037893.

The spelling of 1231793914 in words is "one billion, two hundred thirty-one million, seven hundred ninety-three thousand, nine hundred fourteen".