195879131 has 8 divisors (see below), whose sum is σ = 227015424. Its totient is φ = 165531240.

The previous prime is 195879119. The next prime is 195879133. The reversal of 195879131 is 131978591.

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

It is not a de Polignac number, because 195879131 - 2¹⁴ = 195862747 is a prime.

It is a super-2 number, since 2×195879131² = 76737267922630322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195879133) 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, 196565 + ... + 197558.

It is an arithmetic number, because the mean of its divisors is an integer number (28376928).

Almost surely, 2^195879131 is an apocalyptic number.

195879131 is a deficient number, since it is larger than the sum of its proper divisors (31136293).

195879131 is an equidigital number, since it uses as much as digits as its factorization.

195879131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394201.

The product of its digits is 68040, while the sum is 44.

The square root of 195879131 is about 13995.6825842829. The cubic root of 195879131 is about 580.7591436802.

The spelling of 195879131 in words is "one hundred ninety-five million, eight hundred seventy-nine thousand, one hundred thirty-one".