2154454 has 4 divisors (see below), whose sum is σ = 3231684. Its totient is φ = 1077226.

The previous prime is 2154419. The next prime is 2154487. The reversal of 2154454 is 4544512.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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, 538612 + ... + 538615.

It is an arithmetic number, because the mean of its divisors is an integer number (807921).

2^2154454 is an apocalyptic number.

2154454 is a deficient number, since it is larger than the sum of its proper divisors (1077230).

2154454 is a wasteful number, since it uses less digits than its factorization.

2154454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077229.

The product of its digits is 3200, while the sum is 25.

The square root of 2154454 is about 1467.8058454714. The cubic root of 2154454 is about 129.1553523677.

Adding to 2154454 its reverse (4544512), we get a palindrome (6698966).

The spelling of 2154454 in words is "two million, one hundred fifty-four thousand, four hundred fifty-four".