102045219 has 16 divisors (see below), whose sum is σ = 143510400. Its totient is φ = 64319616.

The previous prime is 102045217. The next prime is 102045239. The reversal of 102045219 is 912540201.

It is not a de Polignac number, because 102045219 - 2¹ = 102045217 is a prime.

It is a super-2 number, since 2×102045219² = 20826453441515922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102045217) 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 15 ways as a sum of consecutive naturals, for example, 32292 + ... + 35310.

It is an arithmetic number, because the mean of its divisors is an integer number (8969400).

Almost surely, 2^102045219 is an apocalyptic number.

102045219 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

102045219 is a deficient number, since it is larger than the sum of its proper divisors (41465181).

102045219 is a wasteful number, since it uses less digits than its factorization.

102045219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 102045219 is about 10101.7433643901. The cubic root of 102045219 is about 467.3019077437.

The spelling of 102045219 in words is "one hundred two million, forty-five thousand, two hundred nineteen".