195632077 has 4 divisors (see below), whose sum is σ = 195667516. Its totient is φ = 195596640.

The previous prime is 195632071. The next prime is 195632093. The reversal of 195632077 is 770236591.

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

It can be written as a sum of positive squares in 2 ways, for example, as 179399236 + 16232841 = 13394^2 + 4029^2 .

It is a cyclic number.

It is not a de Polignac number, because 195632077 - 2⁷ = 195631949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195632071) 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, 7458 + ... + 21139.

It is an arithmetic number, because the mean of its divisors is an integer number (48916879).

Almost surely, 2^195632077 is an apocalyptic number.

It is an amenable number.

195632077 is a deficient number, since it is larger than the sum of its proper divisors (35439).

195632077 is an equidigital number, since it uses as much as digits as its factorization.

195632077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35438.

The product of its (nonzero) digits is 79380, while the sum is 40.

The square root of 195632077 is about 13986.8537205477. The cubic root of 195632077 is about 580.5148787053.

The spelling of 195632077 in words is "one hundred ninety-five million, six hundred thirty-two thousand, seventy-seven".