100001072 has 20 divisors (see below), whose sum is σ = 205149816. Its totient is φ = 47059200.

The previous prime is 100001059. The next prime is 100001081. The reversal of 100001072 is 270100001.

It is a super-2 number, since 2×100001072² = 20000428802298368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183554 + ... + 184097.

Almost surely, 2^100001072 is an apocalyptic number.

It is an amenable number.

100001072 is an abundant number, since it is smaller than the sum of its proper divisors (105148744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

100001072 is a wasteful number, since it uses less digits than its factorization.

100001072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367676 (or 367670 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 100001072 is about 10000.0535998564. The cubic root of 100001072 is about 464.1605419498.

Adding to 100001072 its reverse (270100001), we get a palindrome (370101073).

The spelling of 100001072 in words is "one hundred million, one thousand, seventy-two".