102100010 has 16 divisors (see below), whose sum is σ = 190117800. Its totient is φ = 39431616.

The previous prime is 102100007. The next prime is 102100067. The reversal of 102100010 is 10001201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 99341089 + 2758921 = 9967^2 + 1661^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102099967 and 102100003.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 175745 + ... + 176324.

Almost surely, 2^102100010 is an apocalyptic number.

102100010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102100010 is a deficient number, since it is larger than the sum of its proper divisors (88017790).

102100010 is a wasteful number, since it uses less digits than its factorization.

102100010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352105.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 102100010 is about 10104.4549580866. The cubic root of 102100010 is about 467.3855287042.

Adding to 102100010 its reverse (10001201), we get a palindrome (112101211).

The spelling of 102100010 in words is "one hundred two million, one hundred thousand, ten".