102152210 has 16 divisors (see below), whose sum is σ = 190215000. Its totient is φ = 39451776.

The previous prime is 102152209. The next prime is 102152213. The reversal of 102152210 is 12251201.

It can be written as a sum of positive squares in 4 ways, for example, as 57623281 + 44528929 = 7591^2 + 6673^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102152213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175835 + ... + 176414.

Almost surely, 2^102152210 is an apocalyptic number.

102152210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102152210 is a deficient number, since it is larger than the sum of its proper divisors (88062790).

102152210 is a wasteful number, since it uses less digits than its factorization.

102152210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352285.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 102152210 is about 10107.0376471051. The cubic root of 102152210 is about 467.4651675078.

The spelling of 102152210 in words is "one hundred two million, one hundred fifty-two thousand, two hundred ten".