2154367 has 4 divisors (see below), whose sum is σ = 2157840. Its totient is φ = 2150896.

The previous prime is 2154331. The next prime is 2154389. The reversal of 2154367 is 7634512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2154367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523 + ... + 2140.

It is an arithmetic number, because the mean of its divisors is an integer number (539460).

2^2154367 is an apocalyptic number.

2154367 is a deficient number, since it is larger than the sum of its proper divisors (3473).

2154367 is an equidigital number, since it uses as much as digits as its factorization.

2154367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472.

The product of its digits is 5040, while the sum is 28.

The square root of 2154367 is about 1467.7762091000. The cubic root of 2154367 is about 129.1536138504.

Adding to 2154367 its reverse (7634512), we get a palindrome (9788879).

The spelling of 2154367 in words is "two million, one hundred fifty-four thousand, three hundred sixty-seven".