100997025 has 24 divisors (see below), whose sum is σ = 174244800. Its totient is φ = 51522240.

The previous prime is 100997023. The next prime is 100997041. The reversal of 100997025 is 520799001.

It is not a de Polignac number, because 100997025 - 2¹ = 100997023 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100997023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27550 + ... + 30999.

It is an arithmetic number, because the mean of its divisors is an integer number (7260200).

Almost surely, 2^100997025 is an apocalyptic number.

100997025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100997025 is a deficient number, since it is larger than the sum of its proper divisors (73247775).

100997025 is a wasteful number, since it uses less digits than its factorization.

100997025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58585 (or 58580 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 100997025 is about 10049.7276082489. The cubic root of 100997025 is about 465.6963782592.

The spelling of 100997025 in words is "one hundred million, nine hundred ninety-seven thousand, twenty-five".