2146631 has 4 divisors (see below), whose sum is σ = 2192352. Its totient is φ = 2100912.

The previous prime is 2146619. The next prime is 2146633. The reversal of 2146631 is 1366412.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2146631 is a prime.

It is a super-2 number, since 2×2146631² = 9216049300322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2146597 and 2146606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146633) 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, 22790 + ... + 22883.

It is an arithmetic number, because the mean of its divisors is an integer number (548088).

2^2146631 is an apocalyptic number.

2146631 is a deficient number, since it is larger than the sum of its proper divisors (45721).

2146631 is an equidigital number, since it uses as much as digits as its factorization.

2146631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45720.

The product of its digits is 864, while the sum is 23.

The square root of 2146631 is about 1465.1385600004. The cubic root of 2146631 is about 128.9988382004.

The spelling of 2146631 in words is "two million, one hundred forty-six thousand, six hundred thirty-one".