100489169 has 16 divisors (see below), whose sum is σ = 111755904. Its totient is φ = 90343440.

The previous prime is 100489163. The next prime is 100489177. The reversal of 100489169 is 961984001.

It is a happy number.

It is not a de Polignac number, because 100489169 - 2⁴ = 100489153 is a prime.

It is a super-2 number, since 2×100489169² = 20196146172621122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100489163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136727 + ... + 137459.

It is an arithmetic number, because the mean of its divisors is an integer number (6984744).

Almost surely, 2^100489169 is an apocalyptic number.

It is an amenable number.

100489169 is a deficient number, since it is larger than the sum of its proper divisors (11266735).

100489169 is an equidigital number, since it uses as much as digits as its factorization.

100489169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869 (or 847 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 100489169 is about 10024.4286121454. The cubic root of 100489169 is about 464.9144930839.

It can be divided in two parts, 100489 and 169, that multiplied together give a square (16982641 = 4121²).

The spelling of 100489169 in words is "one hundred million, four hundred eighty-nine thousand, one hundred sixty-nine".