2154960 has 120 divisors (see below), whose sum is σ = 7515144. Its totient is φ = 552960.

The previous prime is 2154953. The next prime is 2154967. The reversal of 2154960 is 694512.

It is an interprime number because it is at equal distance from previous prime (2154953) and next prime (2154967).

It can be written as a sum of positive squares in 4 ways, for example, as 11664 + 2143296 = 108^2 + 1464^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154967) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29484 + ... + 29556.

2^2154960 is an apocalyptic number.

2154960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2154960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3757572).

2154960 is an abundant number, since it is smaller than the sum of its proper divisors (5360184).

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

2154960 is a wasteful number, since it uses less digits than its factorization.

2154960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2154960 is about 1467.9782014730. The cubic root of 2154960 is about 129.1654628169.

It can be divided in two parts, 21549 and 60, that added together give a square (21609 = 147²).

The spelling of 2154960 in words is "two million, one hundred fifty-four thousand, nine hundred sixty".