102190215 has 16 divisors (see below), whose sum is σ = 163683936. Its totient is φ = 54441600.

The previous prime is 102190147. The next prime is 102190217. The reversal of 102190215 is 512091201.

It is not a de Polignac number, because 102190215 - 2⁸ = 102189959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102190191 and 102190200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102190217) 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 15 ways as a sum of consecutive naturals, for example, 12705 + ... + 19125.

It is an arithmetic number, because the mean of its divisors is an integer number (10230246).

Almost surely, 2^102190215 is an apocalyptic number.

102190215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

102190215 is a deficient number, since it is larger than the sum of its proper divisors (61493721).

102190215 is a wasteful number, since it uses less digits than its factorization.

102190215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7490.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 102190215 is about 10108.9175978440. The cubic root of 102190215 is about 467.5231326786.

The spelling of 102190215 in words is "one hundred two million, one hundred ninety thousand, two hundred fifteen".