102562643 has 2 divisors, whose sum is σ = 102562644. Its totient is φ = 102562642.

The previous prime is 102562637. The next prime is 102562661. The reversal of 102562643 is 346265201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102562643 - 2¹⁰ = 102561619 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (102562843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51281321 + 51281322.

It is an arithmetic number, because the mean of its divisors is an integer number (51281322).

Almost surely, 2^102562643 is an apocalyptic number.

102562643 is a deficient number, since it is larger than the sum of its proper divisors (1).

102562643 is an equidigital number, since it uses as much as digits as its factorization.

102562643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 102562643 is about 10127.3216103766. The cubic root of 102562643 is about 468.0904003297.

The spelling of 102562643 in words is "one hundred two million, five hundred sixty-two thousand, six hundred forty-three".