2156054 has 4 divisors (see below), whose sum is σ = 3234084. Its totient is φ = 1078026.

The previous prime is 2156053. The next prime is 2156071. The reversal of 2156054 is 4506512.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539012 + ... + 539015.

It is an arithmetic number, because the mean of its divisors is an integer number (808521).

2^2156054 is an apocalyptic number.

2156054 is a deficient number, since it is larger than the sum of its proper divisors (1078030).

2156054 is a wasteful number, since it uses less digits than its factorization.

2156054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078029.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 2156054 is about 1468.3507755302. The cubic root of 2156054 is about 129.1873167586.

The spelling of 2156054 in words is "two million, one hundred fifty-six thousand, fifty-four".