100561124 has 6 divisors (see below), whose sum is σ = 175981974. Its totient is φ = 50280560.

The previous prime is 100561099. The next prime is 100561147. The reversal of 100561124 is 421165001.

It can be written as a sum of positive squares in only one way, i.e., 79566400 + 20994724 = 8920^2 + 4582^2 .

It is a super-2 number, since 2×100561124² = 20225079320286752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100561096 and 100561105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12570137 + ... + 12570144.

It is an arithmetic number, because the mean of its divisors is an integer number (29330329).

Almost surely, 2^100561124 is an apocalyptic number.

It is an amenable number.

100561124 is a deficient number, since it is larger than the sum of its proper divisors (75420850).

100561124 is a wasteful number, since it uses less digits than its factorization.

100561124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25140285 (or 25140283 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 100561124 is about 10028.0169525186. The cubic root of 100561124 is about 465.0254335339.

The spelling of 100561124 in words is "one hundred million, five hundred sixty-one thousand, one hundred twenty-four".