20675101 has 4 divisors (see below), whose sum is σ = 20799072. Its totient is φ = 20551132.

The previous prime is 20675099. The next prime is 20675107. The reversal of 20675101 is 10157602.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20675101 - 2¹ = 20675099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20675107) 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, 61735 + ... + 62068.

It is an arithmetic number, because the mean of its divisors is an integer number (5199768).

Almost surely, 2^20675101 is an apocalyptic number.

It is an amenable number.

20675101 is a deficient number, since it is larger than the sum of its proper divisors (123971).

20675101 is a wasteful number, since it uses less digits than its factorization.

20675101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123970.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 20675101 is about 4546.9881240223. The cubic root of 20675101 is about 274.4622040566.

The spelling of 20675101 in words is "twenty million, six hundred seventy-five thousand, one hundred one".