195009002 has 4 divisors (see below), whose sum is σ = 292513506. Its totient is φ = 97504500.

The previous prime is 195008987. The next prime is 195009007. The reversal of 195009002 is 200900591.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200900591 = 5471 ⋅36721.

It can be written as a sum of positive squares in only one way, i.e., 123454321 + 71554681 = 11111^2 + 8459^2 .

It is a super-2 number, since 2×195009002² = 76057021722072008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (195009007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48752249 + ... + 48752252.

Almost surely, 2^195009002 is an apocalyptic number.

195009002 is a deficient number, since it is larger than the sum of its proper divisors (97504504).

195009002 is an equidigital number, since it uses as much as digits as its factorization.

195009002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97504503.

The product of its (nonzero) digits is 810, while the sum is 26.

The square root of 195009002 is about 13964.5623633539. The cubic root of 195009002 is about 579.8979229793.

Adding to 195009002 its reverse (200900591), we get a palindrome (395909593).

The spelling of 195009002 in words is "one hundred ninety-five million, nine thousand, two".