20195002 has 8 divisors (see below), whose sum is σ = 30352212. Its totient is φ = 10077600.

The previous prime is 20194973. The next prime is 20195009. The reversal of 20195002 is 20059102.

It can be written as a sum of positive squares in 2 ways, for example, as 20169081 + 25921 = 4491^2 + 161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20195009) 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, 8649 + ... + 10732.

Almost surely, 2^20195002 is an apocalyptic number.

20195002 is a deficient number, since it is larger than the sum of its proper divisors (10157210).

20195002 is a wasteful number, since it uses less digits than its factorization.

20195002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19904.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 20195002 is about 4493.8849562489. The cubic root of 20195002 is about 272.3211047009.

It can be divided in two parts, 2019 and 5002, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 20195002 in words is "twenty million, one hundred ninety-five thousand, two".