1923703139 has 8 divisors (see below), whose sum is σ = 1994105520. Its totient is φ = 1853572000.

The previous prime is 1923703123. The next prime is 1923703147. The reversal of 1923703139 is 9313073291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1923703139 - 2⁴ = 1923703123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1923783139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53312 + ... + 81789.

It is an arithmetic number, because the mean of its divisors is an integer number (249263190).

Almost surely, 2^1923703139 is an apocalyptic number.

1923703139 is a deficient number, since it is larger than the sum of its proper divisors (70402381).

1923703139 is a wasteful number, since it uses less digits than its factorization.

1923703139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135621.

The product of its (nonzero) digits is 30618, while the sum is 38.

The square root of 1923703139 is about 43860.0403442587. The cubic root of 1923703139 is about 1243.6915526721.

The spelling of 1923703139 in words is "one billion, nine hundred twenty-three million, seven hundred three thousand, one hundred thirty-nine".