2154159 has 24 divisors (see below), whose sum is σ = 3674112. Its totient is φ = 1190160.

The previous prime is 2154143. The next prime is 2154161. The reversal of 2154159 is 9514512.

2154159 = T₂₃₂ + T₂₃₃ + ... + T₂₉₃.

It is not a de Polignac number, because 2154159 - 2⁴ = 2154143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154109) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1402 + ... + 2504.

It is an arithmetic number, because the mean of its divisors is an integer number (153088).

2^2154159 is an apocalyptic number.

2154159 is a deficient number, since it is larger than the sum of its proper divisors (1519953).

2154159 is a wasteful number, since it uses less digits than its factorization.

2154159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147 (or 1144 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 2154159 is about 1467.7053519014. The cubic root of 2154159 is about 129.1494572054.

The spelling of 2154159 in words is "two million, one hundred fifty-four thousand, one hundred fifty-nine".