195157983 has 8 divisors (see below), whose sum is σ = 263346048. Its totient is φ = 128537624.

The previous prime is 195157969. The next prime is 195157997. The reversal of 195157983 is 389751591.

It is an interprime number because it is at equal distance from previous prime (195157969) and next prime (195157997).

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 195157983 - 2¹⁴ = 195141599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195157283) 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, 391635 + ... + 392132.

It is an arithmetic number, because the mean of its divisors is an integer number (32918256).

Almost surely, 2^195157983 is an apocalyptic number.

195157983 is a deficient number, since it is larger than the sum of its proper divisors (68188065).

195157983 is an equidigital number, since it uses as much as digits as its factorization.

195157983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783853.

The product of its digits is 340200, while the sum is 48.

The square root of 195157983 is about 13969.8955973193. The cubic root of 195157983 is about 580.0455602340.

The spelling of 195157983 in words is "one hundred ninety-five million, one hundred fifty-seven thousand, nine hundred eighty-three".