2154755 has 16 divisors (see below), whose sum is σ = 2769984. Its totient is φ = 1605120.

The previous prime is 2154749. The next prime is 2154791. The reversal of 2154755 is 5574512.

It is not a de Polignac number, because 2154755 - 2⁸ = 2154499 is a prime.

It is a super-2 number, since 2×2154755² = 9285938220050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4487 + ... + 4943.

It is an arithmetic number, because the mean of its divisors is an integer number (173124).

2^2154755 is an apocalyptic number.

2154755 is a deficient number, since it is larger than the sum of its proper divisors (615229).

2154755 is a wasteful number, since it uses less digits than its factorization.

2154755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526.

The product of its digits is 7000, while the sum is 29.

The square root of 2154755 is about 1467.9083758873. The cubic root of 2154755 is about 129.1613668770.

The spelling of 2154755 in words is "two million, one hundred fifty-four thousand, seven hundred fifty-five".