20612001 has 8 divisors (see below), whose sum is σ = 27511744. Its totient is φ = 13726800.

The previous prime is 20611999. The next prime is 20612003. The reversal of 20612001 is 10021602.

It is an interprime number because it is at equal distance from previous prime (20611999) and next prime (20612003).

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

It is not a de Polignac number, because 20612001 - 2¹ = 20611999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20612003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276 + ... + 6426.

It is an arithmetic number, because the mean of its divisors is an integer number (3438968).

Almost surely, 2^20612001 is an apocalyptic number.

It is an amenable number.

20612001 is a deficient number, since it is larger than the sum of its proper divisors (6899743).

20612001 is a wasteful number, since it uses less digits than its factorization.

20612001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7271.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 20612001 is about 4540.0441627808. The cubic root of 20612001 is about 274.1827017759.

Adding to 20612001 its reverse (10021602), we get a palindrome (30633603).

The spelling of 20612001 in words is "twenty million, six hundred twelve thousand, one".