2155474 has 16 divisors (see below), whose sum is σ = 3437280. Its totient is φ = 1010880.

The previous prime is 2155463. The next prime is 2155477. The reversal of 2155474 is 4745512.

It is not an unprimeable number, because it can be changed into a prime (2155477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4762 + ... + 5194.

It is an arithmetic number, because the mean of its divisors is an integer number (214830).

2^2155474 is an apocalyptic number.

2155474 is a deficient number, since it is larger than the sum of its proper divisors (1281806).

2155474 is a wasteful number, since it uses less digits than its factorization.

2155474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 585.

The product of its digits is 5600, while the sum is 28.

The square root of 2155474 is about 1468.1532617544. The cubic root of 2155474 is about 129.1757314947.

The spelling of 2155474 in words is "two million, one hundred fifty-five thousand, four hundred seventy-four".