2154369 has 16 divisors (see below), whose sum is σ = 3307392. Its totient is φ = 1221888.

The previous prime is 2154331. The next prime is 2154389. The reversal of 2154369 is 9634512.

It is not a de Polignac number, because 2154369 - 2⁷ = 2154241 is a prime.

It is a super-2 number, since 2×2154369² = 9282611576322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2154319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3337 + ... + 3929.

It is an arithmetic number, because the mean of its divisors is an integer number (206712).

2^2154369 is an apocalyptic number.

It is an amenable number.

2154369 is a deficient number, since it is larger than the sum of its proper divisors (1153023).

2154369 is a wasteful number, since it uses less digits than its factorization.

2154369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 776.

The product of its digits is 6480, while the sum is 30.

The square root of 2154369 is about 1467.7768904026. The cubic root of 2154369 is about 129.1536538168.

It can be divided in two parts, 21543 and 69, that added together give a palindrome (21612).

The spelling of 2154369 in words is "two million, one hundred fifty-four thousand, three hundred sixty-nine".