2170949537 has 2 divisors, whose sum is σ = 2170949538. Its totient is φ = 2170949536.

The previous prime is 2170949527. The next prime is 2170949563. The reversal of 2170949537 is 7359490712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1191009121 + 979940416 = 34511^2 + 31304^2 .

It is a cyclic number.

It is not a de Polignac number, because 2170949537 - 2⁸ = 2170949281 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2170949491 and 2170949500.

It is not a weakly prime, because it can be changed into another prime (2170949527) 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, 1085474768 + 1085474769.

It is an arithmetic number, because the mean of its divisors is an integer number (1085474769).

Almost surely, 2^2170949537 is an apocalyptic number.

It is an amenable number.

2170949537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2170949537 is an equidigital number, since it uses as much as digits as its factorization.

2170949537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 476280, while the sum is 47.

The square root of 2170949537 is about 46593.4495074147. The cubic root of 2170949537 is about 1294.8413985637.

The spelling of 2170949537 in words is "two billion, one hundred seventy million, nine hundred forty-nine thousand, five hundred thirty-seven".