2146493 has 4 divisors (see below), whose sum is σ = 2220540. Its totient is φ = 2072448.

The previous prime is 2146489. The next prime is 2146499. The reversal of 2146493 is 3946412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1708249 + 438244 = 1307^2 + 662^2 .

It is a cyclic number.

It is not a de Polignac number, because 2146493 - 2² = 2146489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 74017 = 2146493 / (2 + 1 + 4 + 6 + 4 + 9 + 3).

It is a d-powerful number, because it can be written as 2⁵ + 1 + 4⁶ + 6³ + 4⁷ + 9⁶ + 3¹³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146499) 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, 36980 + ... + 37037.

It is an arithmetic number, because the mean of its divisors is an integer number (555135).

2^2146493 is an apocalyptic number.

It is an amenable number.

2146493 is a deficient number, since it is larger than the sum of its proper divisors (74047).

2146493 is an equidigital number, since it uses as much as digits as its factorization.

2146493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74046.

The product of its digits is 5184, while the sum is 29.

The square root of 2146493 is about 1465.0914647216. The cubic root of 2146493 is about 128.9960738344.

The spelling of 2146493 in words is "two million, one hundred forty-six thousand, four hundred ninety-three".