2180537 has 2 divisors, whose sum is σ = 2180538. Its totient is φ = 2180536.

The previous prime is 2180527. The next prime is 2180543. The reversal of 2180537 is 7350812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1784896 + 395641 = 1336^2 + 629^2 .

It is a cyclic number.

It is not a de Polignac number, because 2180537 - 2⁸ = 2180281 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2180527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090268 + 1090269.

It is an arithmetic number, because the mean of its divisors is an integer number (1090269).

2^2180537 is an apocalyptic number.

It is an amenable number.

2180537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2180537 is an equidigital number, since it uses as much as digits as its factorization.

2180537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 2180537 is about 1476.6641459723. The cubic root of 2180537 is about 129.6744715320.

The spelling of 2180537 in words is "two million, one hundred eighty thousand, five hundred thirty-seven".