20013195 has 16 divisors (see below), whose sum is σ = 32078592. Its totient is φ = 10654560.

The previous prime is 20013193. The next prime is 20013221. The reversal of 20013195 is 59131002.

It is not a de Polignac number, because 20013195 - 2¹ = 20013193 is a prime.

It is a super-3 number, since 3×20013195³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20013193) 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, 12490 + ... + 14000.

It is an arithmetic number, because the mean of its divisors is an integer number (2004912).

Almost surely, 2^20013195 is an apocalyptic number.

20013195 is a deficient number, since it is larger than the sum of its proper divisors (12065397).

20013195 is a wasteful number, since it uses less digits than its factorization.

20013195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 20013195 is about 4473.6109576046. The cubic root of 20013195 is about 271.5014431039.

Adding to 20013195 its reverse (59131002), we get a palindrome (79144197).

The spelling of 20013195 in words is "twenty million, thirteen thousand, one hundred ninety-five".