2146491 has 6 divisors (see below), whose sum is σ = 3100500. Its totient is φ = 1430988.

The previous prime is 2146489. The next prime is 2146499. The reversal of 2146491 is 1946412.

2146491 is a `hidden beast` number, since 2 + 14 + 649 + 1 = 666.

It is not a de Polignac number, because 2146491 - 2¹ = 2146489 is a prime.

It is a super-2 number, since 2×2146491² = 9214847226162, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 119241 + ... + 119258.

It is an arithmetic number, because the mean of its divisors is an integer number (516750).

2^2146491 is an apocalyptic number.

2146491 is a deficient number, since it is larger than the sum of its proper divisors (954009).

2146491 is a wasteful number, since it uses less digits than its factorization.

2146491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238505 (or 238502 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2146491 is about 1465.0907821702. The cubic root of 2146491 is about 128.9960337702.

The spelling of 2146491 in words is "two million, one hundred forty-six thousand, four hundred ninety-one".