195293057 has 4 divisors (see below), whose sum is σ = 199834800. Its totient is φ = 190751316.

The previous prime is 195293053. The next prime is 195293099. The reversal of 195293057 is 750392591.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 195293057 - 2² = 195293053 is a prime.

It is a super-2 number, since 2×195293057² = 76278756224810498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (195293053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2270807 + ... + 2270892.

It is an arithmetic number, because the mean of its divisors is an integer number (49958700).

Almost surely, 2^195293057 is an apocalyptic number.

It is an amenable number.

195293057 is a deficient number, since it is larger than the sum of its proper divisors (4541743).

195293057 is an equidigital number, since it uses as much as digits as its factorization.

195293057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4541742.

The product of its (nonzero) digits is 85050, while the sum is 41.

The square root of 195293057 is about 13974.7292281461. The cubic root of 195293057 is about 580.1793509949.

The spelling of 195293057 in words is "one hundred ninety-five million, two hundred ninety-three thousand, fifty-seven".