2154427 has 16 divisors (see below), whose sum is σ = 2558304. Its totient is φ = 1792000.

The previous prime is 2154419. The next prime is 2154487. The reversal of 2154427 is 7244512.

It is a cyclic number.

It is not a de Polignac number, because 2154427 - 2³ = 2154419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2154487) 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, 7527 + ... + 7807.

It is an arithmetic number, because the mean of its divisors is an integer number (159894).

2^2154427 is an apocalyptic number.

2154427 is a deficient number, since it is larger than the sum of its proper divisors (403877).

2154427 is a wasteful number, since it uses less digits than its factorization.

2154427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350.

The product of its digits is 2240, while the sum is 25.

The square root of 2154427 is about 1467.7966480409. The cubic root of 2154427 is about 129.1548128329.

Adding to 2154427 its reverse (7244512), we get a palindrome (9398939).

The spelling of 2154427 in words is "two million, one hundred fifty-four thousand, four hundred twenty-seven".