2101389 has 8 divisors (see below), whose sum is σ = 2848032. Its totient is φ = 1377840.

The previous prime is 2101357. The next prime is 2101391. The reversal of 2101389 is 9831012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2101389 - 2⁵ = 2101357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101189) 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, 5559 + ... + 5924.

It is an arithmetic number, because the mean of its divisors is an integer number (356004).

2^2101389 is an apocalyptic number.

It is an amenable number.

2101389 is a deficient number, since it is larger than the sum of its proper divisors (746643).

2101389 is a wasteful number, since it uses less digits than its factorization.

2101389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11547.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 2101389 is about 1449.6168459286. The cubic root of 2101389 is about 128.0861439978.

The spelling of 2101389 in words is "two million, one hundred one thousand, three hundred eighty-nine".