100561624 has 8 divisors (see below), whose sum is σ = 188553060. Its totient is φ = 50280808.

The previous prime is 100561619. The next prime is 100561639. The reversal of 100561624 is 426165001.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×100561624² = 20225280443034752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6285094 + ... + 6285109.

Almost surely, 2^100561624 is an apocalyptic number.

It is an amenable number.

100561624 is a deficient number, since it is larger than the sum of its proper divisors (87991436).

100561624 is a wasteful number, since it uses less digits than its factorization.

100561624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12570209 (or 12570205 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 100561624 is about 10028.0418826409. The cubic root of 100561624 is about 465.0262042503.

The spelling of 100561624 in words is "one hundred million, five hundred sixty-one thousand, six hundred twenty-four".