20610136 has 16 divisors (see below), whose sum is σ = 40678200. Its totient is φ = 9762624.

The previous prime is 20610119. The next prime is 20610151. The reversal of 20610136 is 63101602.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67645 + ... + 67948.

Almost surely, 2^20610136 is an apocalyptic number.

It is an amenable number.

20610136 is a deficient number, since it is larger than the sum of its proper divisors (20068064).

20610136 is a wasteful number, since it uses less digits than its factorization.

20610136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135618 (or 135614 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 20610136 is about 4539.8387636567. The cubic root of 20610136 is about 274.1744320603.

Adding to 20610136 its reverse (63101602), we get a palindrome (83711738).

The spelling of 20610136 in words is "twenty million, six hundred ten thousand, one hundred thirty-six".