2149180837 has 2 divisors, whose sum is σ = 2149180838. Its totient is φ = 2149180836.

The previous prime is 2149180829. The next prime is 2149180861. The reversal of 2149180837 is 7380819412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2114712196 + 34468641 = 45986^2 + 5871^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149180837 - 2³ = 2149180829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2149180793 and 2149180802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2149180897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074590418 + 1074590419.

It is an arithmetic number, because the mean of its divisors is an integer number (1074590419).

Almost surely, 2^2149180837 is an apocalyptic number.

It is an amenable number.

2149180837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149180837 is an equidigital number, since it uses as much as digits as its factorization.

2149180837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 2149180837 is about 46359.2583741371. The cubic root of 2149180837 is about 1290.4989430647.

The spelling of 2149180837 in words is "two billion, one hundred forty-nine million, one hundred eighty thousand, eight hundred thirty-seven".