20150195 has 16 divisors (see below), whose sum is σ = 26225472. Its totient is φ = 14774400.

The previous prime is 20150189. The next prime is 20150197. The reversal of 20150195 is 59105102.

It is not a de Polignac number, because 20150195 - 2⁶ = 20150131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20150195.

It is not an unprimeable number, because it can be changed into a prime (20150197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8789 + ... + 10841.

It is an arithmetic number, because the mean of its divisors is an integer number (1639092).

Almost surely, 2^20150195 is an apocalyptic number.

20150195 is a deficient number, since it is larger than the sum of its proper divisors (6075277).

20150195 is a wasteful number, since it uses less digits than its factorization.

20150195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 20150195 is about 4488.8968578037. The cubic root of 20150195 is about 272.1195543856.

Adding to 20150195 its reverse (59105102), we get a palindrome (79255297).

The spelling of 20150195 in words is "twenty million, one hundred fifty thousand, one hundred ninety-five".