100611889 has 4 divisors (see below), whose sum is σ = 114985024. Its totient is φ = 86238756.

The previous prime is 100611869. The next prime is 100611943. The reversal of 100611889 is 988116001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 988116001 = 21379 ⋅46219.

It is a cyclic number.

It is not a de Polignac number, because 100611889 - 2⁷ = 100611761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100611829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7186557 + ... + 7186570.

It is an arithmetic number, because the mean of its divisors is an integer number (28746256).

Almost surely, 2^100611889 is an apocalyptic number.

It is an amenable number.

100611889 is a deficient number, since it is larger than the sum of its proper divisors (14373135).

100611889 is an equidigital number, since it uses as much as digits as its factorization.

100611889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14373134.

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 100611889 is about 10030.5477916214. The cubic root of 100611889 is about 465.1036713389.

The spelling of 100611889 in words is "one hundred million, six hundred eleven thousand, eight hundred eighty-nine".