20100753 has 6 divisors (see below), whose sum is σ = 29034434. Its totient is φ = 13400496.

The previous prime is 20100733. The next prime is 20100809. The reversal of 20100753 is 35700102.

It can be written as a sum of positive squares in only one way, i.e., 17114769 + 2985984 = 4137^2 + 1728^2 .

It is not a de Polignac number, because 20100753 - 2⁵ = 20100721 is a prime.

It is a super-3 number, since 3×20100753³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20100713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1116700 + ... + 1116717.

Almost surely, 2^20100753 is an apocalyptic number.

It is an amenable number.

20100753 is a deficient number, since it is larger than the sum of its proper divisors (8933681).

20100753 is a wasteful number, since it uses less digits than its factorization.

20100753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233423 (or 2233420 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 20100753 is about 4483.3863317809. The cubic root of 20100753 is about 271.8968079217.

Adding to 20100753 its reverse (35700102), we get a palindrome (55800855).

The spelling of 20100753 in words is "twenty million, one hundred thousand, seven hundred fifty-three".