100180669 has 6 divisors (see below), whose sum is σ = 102566526. Its totient is φ = 97849080.

The previous prime is 100180657. The next prime is 100180679. The reversal of 100180669 is 966081001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 53436100 + 46744569 = 7310^2 + 6837^2 .

It is not a de Polignac number, because 100180669 - 2⁵ = 100180637 is a prime.

It is a super-2 number, since 2×100180669² = 20072332882575122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100180669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100180679) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25242 + ... + 28939.

It is an arithmetic number, because the mean of its divisors is an integer number (17094421).

Almost surely, 2^100180669 is an apocalyptic number.

It is an amenable number.

100180669 is a deficient number, since it is larger than the sum of its proper divisors (2385857).

100180669 is an frugal number, since it uses more digits than its factorization.

100180669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54267 (or 54224 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 100180669 is about 10009.0293735207. The cubic root of 100180669 is about 464.4382455928.

The spelling of 100180669 in words is "one hundred million, one hundred eighty thousand, six hundred sixty-nine".