101989146 has 16 divisors (see below), whose sum is σ = 233118144. Its totient is φ = 29139744.

The previous prime is 101989141. The next prime is 101989193. The reversal of 101989146 is 641989101.

It is not an unprimeable number, because it can be changed into a prime (101989141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1214115 + ... + 1214198.

It is an arithmetic number, because the mean of its divisors is an integer number (14569884).

Almost surely, 2^101989146 is an apocalyptic number.

101989146 is an abundant number, since it is smaller than the sum of its proper divisors (131128998).

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

101989146 is a wasteful number, since it uses less digits than its factorization.

101989146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428325.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 101989146 is about 10098.9675709946. The cubic root of 101989146 is about 467.2162992228.

The spelling of 101989146 in words is "one hundred one million, nine hundred eighty-nine thousand, one hundred forty-six".