100561670 has 64 divisors (see below), whose sum is σ = 206032896. Its totient is φ = 35018880.

The previous prime is 100561667. The next prime is 100561687. The reversal of 100561670 is 76165001.

It is a super-2 number, since 2×100561670² = 20225298946377800, 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 31 ways as a sum of consecutive naturals, for example, 273827 + ... + 274193.

It is an arithmetic number, because the mean of its divisors is an integer number (3219264).

Almost surely, 2^100561670 is an apocalyptic number.

100561670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100561670 is an abundant number, since it is smaller than the sum of its proper divisors (105471226).

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

100561670 is a wasteful number, since it uses less digits than its factorization.

100561670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 100561670 is about 10028.0441762090. The cubic root of 100561670 is about 465.0262751561.

The spelling of 100561670 in words is "one hundred million, five hundred sixty-one thousand, six hundred seventy".