102051243 has 12 divisors (see below), whose sum is σ = 168465648. Its totient is φ = 58314960.

The previous prime is 102051233. The next prime is 102051247. The reversal of 102051243 is 342150201.

It is not a de Polignac number, because 102051243 - 2⁹ = 102050731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102051247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 809868 + ... + 809993.

It is an arithmetic number, because the mean of its divisors is an integer number (14038804).

Almost surely, 2^102051243 is an apocalyptic number.

102051243 is a deficient number, since it is larger than the sum of its proper divisors (66414405).

102051243 is a wasteful number, since it uses less digits than its factorization.

102051243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619874 (or 1619871 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102051243 is about 10102.0415263451. The cubic root of 102051243 is about 467.3111029199.

The spelling of 102051243 in words is "one hundred two million, fifty-one thousand, two hundred forty-three".