195139094 has 4 divisors (see below), whose sum is σ = 292708644. Its totient is φ = 97569546.

The previous prime is 195139093. The next prime is 195139111. The reversal of 195139094 is 490931591.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195139093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48784772 + ... + 48784775.

It is an arithmetic number, because the mean of its divisors is an integer number (73177161).

Almost surely, 2^195139094 is an apocalyptic number.

195139094 is a deficient number, since it is larger than the sum of its proper divisors (97569550).

195139094 is an equidigital number, since it uses as much as digits as its factorization.

195139094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97569549.

The product of its (nonzero) digits is 43740, while the sum is 41.

The square root of 195139094 is about 13969.2195200734. The cubic root of 195139094 is about 580.0268457649.

The spelling of 195139094 in words is "one hundred ninety-five million, one hundred thirty-nine thousand, ninety-four".