2154146 has 8 divisors (see below), whose sum is σ = 3243564. Its totient is φ = 1072960.

The previous prime is 2154143. The next prime is 2154161. The reversal of 2154146 is 6414512.

It can be written as a sum of positive squares in 2 ways, for example, as 2146225 + 7921 = 1465^2 + 89^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2154143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1355 + ... + 2478.

2^2154146 is an apocalyptic number.

2154146 is a deficient number, since it is larger than the sum of its proper divisors (1089418).

2154146 is a wasteful number, since it uses less digits than its factorization.

2154146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4116.

The product of its digits is 960, while the sum is 23.

The square root of 2154146 is about 1467.7009232129. The cubic root of 2154146 is about 129.1491974062.

Adding to 2154146 its reverse (6414512), we get a palindrome (8568658).

The spelling of 2154146 in words is "two million, one hundred fifty-four thousand, one hundred forty-six".