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2154137 is a prime number
BaseRepresentation
bin1000001101111010011001
311001102220212
420031322121
51022413022
6114100505
724211166
oct10157231
94042825
102154137
111241487
1287a735
135a564b
1440106d
152c83e2
hex20de99

2154137 has 2 divisors, whose sum is σ = 2154138. Its totient is φ = 2154136.

The previous prime is 2154127. The next prime is 2154143. The reversal of 2154137 is 7314512.

2154137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1990921 + 163216 = 1411^2 + 404^2 .

It is a cyclic number.

It is not a de Polignac number, because 2154137 - 210 = 2153113 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077068 + 1077069.

It is an arithmetic number, because the mean of its divisors is an integer number (1077069).

22154137 is an apocalyptic number.

It is an amenable number.

2154137 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154137 is an equidigital number, since it uses as much as digits as its factorization.

2154137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 23.

The square root of 2154137 is about 1467.6978571900. The cubic root of 2154137 is about 129.1490175446.

Adding to 2154137 its reverse (7314512), we get a palindrome (9468649).

The spelling of 2154137 in words is "two million, one hundred fifty-four thousand, one hundred thirty-seven".