100572101 has 4 divisors (see below), whose sum is σ = 114939552. Its totient is φ = 86204652.

The previous prime is 100572097. The next prime is 100572133. The reversal of 100572101 is 101275001.

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 100572101 - 2² = 100572097 is a prime.

It is a super-2 number, since 2×100572101² = 20229494999108402, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100572101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100572161) 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, 7183715 + ... + 7183728.

It is an arithmetic number, because the mean of its divisors is an integer number (28734888).

Almost surely, 2^100572101 is an apocalyptic number.

It is an amenable number.

100572101 is a deficient number, since it is larger than the sum of its proper divisors (14367451).

100572101 is an equidigital number, since it uses as much as digits as its factorization.

100572101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14367450.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 100572101 is about 10028.5642541692. The cubic root of 100572101 is about 465.0423532548.

The spelling of 100572101 in words is "one hundred million, five hundred seventy-two thousand, one hundred one".