195712069 has 4 divisors (see below), whose sum is σ = 223670944. Its totient is φ = 167753196.

The previous prime is 195712067. The next prime is 195712079. The reversal of 195712069 is 960217591.

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, and also an emirpimes, since its reverse is a distinct semiprime: 960217591 = 31 ⋅30974761.

It is a cyclic number.

It is not a de Polignac number, because 195712069 - 2¹ = 195712067 is a prime.

It is a super-2 number, since 2×195712069² = 76606427904521522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195712061) 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 in 3 ways as a sum of consecutive naturals, for example, 13979427 + ... + 13979440.

It is an arithmetic number, because the mean of its divisors is an integer number (55917736).

Almost surely, 2^195712069 is an apocalyptic number.

It is an amenable number.

195712069 is a deficient number, since it is larger than the sum of its proper divisors (27958875).

195712069 is an equidigital number, since it uses as much as digits as its factorization.

195712069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27958874.

The product of its (nonzero) digits is 34020, while the sum is 40.

The square root of 195712069 is about 13989.7129706081. The cubic root of 195712069 is about 580.5939901666.

The spelling of 195712069 in words is "one hundred ninety-five million, seven hundred twelve thousand, sixty-nine".