2146861837 has 4 divisors (see below), whose sum is σ = 2240203680. Its totient is φ = 2053519996.

The previous prime is 2146861823. The next prime is 2146861853. The reversal of 2146861837 is 7381686412.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2146861837 - 2⁷ = 2146861709 is a prime.

It is a super-3 number, since 3×2146861837³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146861867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46670887 + ... + 46670932.

It is an arithmetic number, because the mean of its divisors is an integer number (560050920).

Almost surely, 2^2146861837 is an apocalyptic number.

It is an amenable number.

2146861837 is a deficient number, since it is larger than the sum of its proper divisors (93341843).

2146861837 is an equidigital number, since it uses as much as digits as its factorization.

2146861837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93341842.

The product of its digits is 387072, while the sum is 46.

The square root of 2146861837 is about 46334.2404383626. The cubic root of 2146861837 is about 1290.0346197868.

The spelling of 2146861837 in words is "two billion, one hundred forty-six million, eight hundred sixty-one thousand, eight hundred thirty-seven".