195008623 has 4 divisors (see below), whose sum is σ = 197680048. Its totient is φ = 192337200.

The previous prime is 195008603. The next prime is 195008633. The reversal of 195008623 is 326800591.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195008623 is a prime.

It is a super-2 number, since 2×195008623² = 76056726088712258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (195008603) 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, 1335603 + ... + 1335748.

It is an arithmetic number, because the mean of its divisors is an integer number (49420012).

Almost surely, 2^195008623 is an apocalyptic number.

195008623 is a deficient number, since it is larger than the sum of its proper divisors (2671425).

195008623 is an equidigital number, since it uses as much as digits as its factorization.

195008623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2671424.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 195008623 is about 13964.5487932837. The cubic root of 195008623 is about 579.8975473019.

The spelling of 195008623 in words is "one hundred ninety-five million, eight thousand, six hundred twenty-three".