100025361 has 14 divisors (see below), whose sum is σ = 149970530. Its totient is φ = 66683088.

The previous prime is 100025351. The next prime is 100025369. The reversal of 100025361 is 163520001.

It can be written as a sum of positive squares in only one way, i.e., 84272400 + 15752961 = 9180^2 + 3969^2 .

It is not a de Polignac number, because 100025361 - 2⁹ = 100024849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100025369) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 67876 + ... + 69333.

Almost surely, 2^100025361 is an apocalyptic number.

It is an amenable number.

100025361 is a deficient number, since it is larger than the sum of its proper divisors (49945169).

100025361 is an frugal number, since it uses more digits than its factorization.

100025361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137227 (or 137212 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 100025361 is about 10001.2679696127. The cubic root of 100025361 is about 464.1981184895.

Adding to 100025361 its reverse (163520001), we get a palindrome (263545362).

The spelling of 100025361 in words is "one hundred million, twenty-five thousand, three hundred sixty-one".