195920039 has 8 divisors (see below), whose sum is σ = 235693440. Its totient is φ = 159092856.

The previous prime is 195919987. The next prime is 195920071. The reversal of 195920039 is 930029591.

195920039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 195920039 - 2¹² = 195915943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 195919984 and 195920011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195920939) 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, 736409 + ... + 736674.

It is an arithmetic number, because the mean of its divisors is an integer number (29461680).

Almost surely, 2^195920039 is an apocalyptic number.

195920039 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

195920039 is a deficient number, since it is larger than the sum of its proper divisors (39773401).

195920039 is a wasteful number, since it uses less digits than its factorization.

195920039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1473109.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 195920039 is about 13997.1439586796. The cubic root of 195920039 is about 580.7995700411.

The spelling of 195920039 in words is "one hundred ninety-five million, nine hundred twenty thousand, thirty-nine".