2155074 has 16 divisors (see below), whose sum is σ = 4410912. Its totient is φ = 701568.

The previous prime is 2155067. The next prime is 2155079. The reversal of 2155074 is 4705512.

It is not an unprimeable number, because it can be changed into a prime (2155079) 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, 3919 + ... + 4434.

It is an arithmetic number, because the mean of its divisors is an integer number (275682).

2^2155074 is an apocalyptic number.

2155074 is an abundant number, since it is smaller than the sum of its proper divisors (2255838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2155074 is a wasteful number, since it uses less digits than its factorization.

2155074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8401.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 2155074 is about 1468.0170298740. The cubic root of 2155074 is about 129.1677404466.

The spelling of 2155074 in words is "two million, one hundred fifty-five thousand, seventy-four".