102050643 has 16 divisors (see below), whose sum is σ = 146105856. Its totient is φ = 63127680.

The previous prime is 102050617. The next prime is 102050647. The reversal of 102050643 is 346050201.

It is a happy number.

It is not a de Polignac number, because 102050643 - 2⁶ = 102050579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102050647) 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 in 15 ways as a sum of consecutive naturals, for example, 10471 + ... + 17712.

It is an arithmetic number, because the mean of its divisors is an integer number (9131616).

Almost surely, 2^102050643 is an apocalyptic number.

102050643 is a deficient number, since it is larger than the sum of its proper divisors (44055213).

102050643 is a wasteful number, since it uses less digits than its factorization.

102050643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28274.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 102050643 is about 10102.0118293338. The cubic root of 102050643 is about 467.3101870819.

The spelling of 102050643 in words is "one hundred two million, fifty thousand, six hundred forty-three".