20453101 has 8 divisors (see below), whose sum is σ = 21675200. Its totient is φ = 19245600.

The previous prime is 20453099. The next prime is 20453123. The reversal of 20453101 is 10135402.

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

It is a cyclic number.

It is not a de Polignac number, because 20453101 - 2¹ = 20453099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20453171) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 696 + ... + 6433.

It is an arithmetic number, because the mean of its divisors is an integer number (2709400).

Almost surely, 2^20453101 is an apocalyptic number.

It is an amenable number.

20453101 is a deficient number, since it is larger than the sum of its proper divisors (1222099).

20453101 is a wasteful number, since it uses less digits than its factorization.

20453101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7299.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 20453101 is about 4522.5104753886. The cubic root of 20453101 is about 273.4763160634.

Adding to 20453101 its reverse (10135402), we get a palindrome (30588503).

The spelling of 20453101 in words is "twenty million, four hundred fifty-three thousand, one hundred one".