2102146493 has 2 divisors, whose sum is σ = 2102146494. Its totient is φ = 2102146492.

The previous prime is 2102146481. The next prime is 2102146513. The reversal of 2102146493 is 3946412012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1110022489 + 992124004 = 33317^2 + 31498^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102146493 - 2⁴ = 2102146477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102146463) 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 as a sum of consecutive naturals, namely, 1051073246 + 1051073247.

It is an arithmetic number, because the mean of its divisors is an integer number (1051073247).

Almost surely, 2^2102146493 is an apocalyptic number.

It is an amenable number.

2102146493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102146493 is an equidigital number, since it uses as much as digits as its factorization.

2102146493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2102146493 is about 45849.1711266409. The cubic root of 2102146493 is about 1281.0153266079.

The spelling of 2102146493 in words is "two billion, one hundred two million, one hundred forty-six thousand, four hundred ninety-three".