100880019 has 16 divisors (see below), whose sum is σ = 153492640. Its totient is φ = 65435040.

The previous prime is 100879993. The next prime is 100880027. The reversal of 100880019 is 910088001.

It is not a de Polignac number, because 100880019 - 2¹¹ = 100877971 is a prime.

It is a super-2 number, since 2×100880019² = 20353556466880722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100879974 and 100880001.

It is not an unprimeable number, because it can be changed into a prime (100880069) 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, 49492 + ... + 51489.

It is an arithmetic number, because the mean of its divisors is an integer number (9593290).

Almost surely, 2^100880019 is an apocalyptic number.

100880019 is a deficient number, since it is larger than the sum of its proper divisors (52612621).

100880019 is a wasteful number, since it uses less digits than its factorization.

100880019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101027 (or 101021 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 100880019 is about 10043.9045694391. The cubic root of 100880019 is about 465.5164708936.

The spelling of 100880019 in words is "one hundred million, eight hundred eighty thousand, nineteen".