20610147 has 8 divisors (see below), whose sum is σ = 28223056. Its totient is φ = 13368672.

The previous prime is 20610119. The next prime is 20610151. The reversal of 20610147 is 74101602.

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

It is not a de Polignac number, because 20610147 - 2¹⁰ = 20609123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20610347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92728 + ... + 92949.

It is an arithmetic number, because the mean of its divisors is an integer number (3527882).

Almost surely, 2^20610147 is an apocalyptic number.

20610147 is a deficient number, since it is larger than the sum of its proper divisors (7612909).

20610147 is a wasteful number, since it uses less digits than its factorization.

20610147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185717.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 20610147 is about 4539.8399751533. The cubic root of 20610147 is about 274.1744808375.

Adding to 20610147 its reverse (74101602), we get a palindrome (94711749).

The spelling of 20610147 in words is "twenty million, six hundred ten thousand, one hundred forty-seven".