2101239 has 12 divisors (see below), whose sum is σ = 3468816. Its totient is φ = 1200672.

The previous prime is 2101237. The next prime is 2101243. The reversal of 2101239 is 9321012.

It is a happy number.

It is not a de Polignac number, because 2101239 - 2¹ = 2101237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16614 + ... + 16739.

It is an arithmetic number, because the mean of its divisors is an integer number (289068).

2^2101239 is an apocalyptic number.

2101239 is a deficient number, since it is larger than the sum of its proper divisors (1367577).

2101239 is a wasteful number, since it uses less digits than its factorization.

2101239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33366 (or 33363 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 2101239 is about 1449.5651071959. The cubic root of 2101239 is about 128.0830962710.

The spelling of 2101239 in words is "two million, one hundred one thousand, two hundred thirty-nine".