2138045 has 32 divisors (see below), whose sum is σ = 3268608. Its totient is φ = 1306368.

The previous prime is 2138033. The next prime is 2138093. The reversal of 2138045 is 5408312.

It is not a de Polignac number, because 2138045 - 2⁴ = 2138029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2138045.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16772 + ... + 16898.

It is an arithmetic number, because the mean of its divisors is an integer number (102144).

2^2138045 is an apocalyptic number.

It is an amenable number.

2138045 is a deficient number, since it is larger than the sum of its proper divisors (1130563).

2138045 is a wasteful number, since it uses less digits than its factorization.

2138045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2138045 is about 1462.2055259094. The cubic root of 2138045 is about 128.8266204316.

The spelling of 2138045 in words is "two million, one hundred thirty-eight thousand, forty-five".