2154319 has 2 divisors, whose sum is σ = 2154320. Its totient is φ = 2154318.

The previous prime is 2154311. The next prime is 2154329. The reversal of 2154319 is 9134512.

2154319 is nontrivially palindromic in base 6.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2154319 - 2³ = 2154311 is a prime.

It is a super-2 number, since 2×2154319² = 9282180707522, which contains 22 as substring.

It is equal to p₁₅₉₅₅₀ and since 2154319 and 159550 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 2154293 and 2154302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154311) 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 as a sum of consecutive naturals, namely, 1077159 + 1077160.

It is an arithmetic number, because the mean of its divisors is an integer number (1077160).

2^2154319 is an apocalyptic number.

2154319 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154319 is an equidigital number, since it uses as much as digits as its factorization.

2154319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 25.

The square root of 2154319 is about 1467.7598577424. The cubic root of 2154319 is about 129.1526546484.

The spelling of 2154319 in words is "two million, one hundred fifty-four thousand, three hundred nineteen".