102102050 has 18 divisors (see below), whose sum is σ = 190042803. Its totient is φ = 40812240.

The previous prime is 102102043. The next prime is 102102071. The reversal of 102102050 is 50201201.

It can be written as a sum of positive squares in 5 ways, for example, as 1481089 + 100620961 = 1217^2 + 10031^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=7145.

It is a super-2 number, since 2×102102050² = 20849657228405000, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 70736 + ... + 72164.

Almost surely, 2^102102050 is an apocalyptic number.

102102050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102102050 is a deficient number, since it is larger than the sum of its proper divisors (87940753).

102102050 is an frugal number, since it uses more digits than its factorization.

102102050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2870 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 102102050 is about 10104.5559031558. Note that the first 3 decimals coincide. The cubic root of 102102050 is about 467.3886415349.

Adding to 102102050 its reverse (50201201), we get a palindrome (152303251).

The spelling of 102102050 in words is "one hundred two million, one hundred two thousand, fifty".