2138833 has 2 divisors, whose sum is σ = 2138834. Its totient is φ = 2138832.

The previous prime is 2138831. The next prime is 2138861. The reversal of 2138833 is 3388312.

It is an a-pointer prime, because the next prime (2138861) can be obtained adding 2138833 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2050624 + 88209 = 1432^2 + 297^2 .

It is a cyclic number.

It is not a de Polignac number, because 2138833 - 2¹ = 2138831 is a prime.

Together with 2138831, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2138831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1069416 + 1069417.

It is an arithmetic number, because the mean of its divisors is an integer number (1069417).

2^2138833 is an apocalyptic number.

It is an amenable number.

2138833 is a deficient number, since it is larger than the sum of its proper divisors (1).

2138833 is an equidigital number, since it uses as much as digits as its factorization.

2138833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 28.

The square root of 2138833 is about 1462.4749570505. The cubic root of 2138833 is about 128.8424453103.

The spelling of 2138833 in words is "two million, one hundred thirty-eight thousand, eight hundred thirty-three".