100025261 has 8 divisors (see below), whose sum is σ = 114430080. Its totient is φ = 85649328.

The previous prime is 100025243. The next prime is 100025273. The reversal of 100025261 is 162520001.

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 100025261 - 2¹⁸ = 99763117 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 (100025201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800 + ... + 14166.

It is an arithmetic number, because the mean of its divisors is an integer number (14303760).

Almost surely, 2^100025261 is an apocalyptic number.

It is an amenable number.

100025261 is a deficient number, since it is larger than the sum of its proper divisors (14404819).

100025261 is a wasteful number, since it uses less digits than its factorization.

100025261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14443.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 100025261 is about 10001.2629702453. The cubic root of 100025261 is about 464.1979637959.

Adding to 100025261 its reverse (162520001), we get a palindrome (262545262).

The spelling of 100025261 in words is "one hundred million, twenty-five thousand, two hundred sixty-one".