20613122 has 8 divisors (see below), whose sum is σ = 31208976. Its totient is φ = 10210132.

The previous prime is 20613097. The next prime is 20613127. The reversal of 20613122 is 22131602.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20613122.

It is not an unprimeable number, because it can be changed into a prime (20613127) 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, 47948 + ... + 48375.

It is an arithmetic number, because the mean of its divisors is an integer number (3901122).

Almost surely, 2^20613122 is an apocalyptic number.

20613122 is a deficient number, since it is larger than the sum of its proper divisors (10595854).

20613122 is a wasteful number, since it uses less digits than its factorization.

20613122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96432.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 20613122 is about 4540.1676180511. The cubic root of 20613122 is about 274.1876722336.

Adding to 20613122 its reverse (22131602), we get a palindrome (42744724).

The spelling of 20613122 in words is "twenty million, six hundred thirteen thousand, one hundred twenty-two".