2152454 has 16 divisors (see below), whose sum is σ = 3369600. Its totient is φ = 1030080.

The previous prime is 2152433. The next prime is 2152457. The reversal of 2152454 is 4542512.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2152457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9122 + ... + 9354.

It is an arithmetic number, because the mean of its divisors is an integer number (210600).

2^2152454 is an apocalyptic number.

2152454 is a deficient number, since it is larger than the sum of its proper divisors (1217146).

2152454 is a wasteful number, since it uses less digits than its factorization.

With its successor (2152455) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (415).

2152454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415.

The product of its digits is 1600, while the sum is 23.

The square root of 2152454 is about 1467.1243982703. The cubic root of 2152454 is about 129.1153746167.

Adding to 2152454 its reverse (4542512), we get a palindrome (6694966).

The spelling of 2152454 in words is "two million, one hundred fifty-two thousand, four hundred fifty-four".