102001870 has 16 divisors (see below), whose sum is σ = 194403888. Its totient is φ = 38400640.

The previous prime is 102001847. The next prime is 102001871. The reversal of 102001870 is 78100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102001871) 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 7 ways as a sum of consecutive naturals, for example, 299836 + ... + 300175.

It is an arithmetic number, because the mean of its divisors is an integer number (12150243).

Almost surely, 2^102001870 is an apocalyptic number.

102001870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102001870 is a deficient number, since it is larger than the sum of its proper divisors (92402018).

102001870 is a wasteful number, since it uses less digits than its factorization.

102001870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600035.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 102001870 is about 10099.5975167330. The cubic root of 102001870 is about 467.2357281301.

The spelling of 102001870 in words is "one hundred two million, one thousand, eight hundred seventy".