102150505 has 8 divisors (see below), whose sum is σ = 125188992. Its totient is φ = 79981488.

The previous prime is 102150497. The next prime is 102150509. The reversal of 102150505 is 505051201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102150505 - 2³ = 102150497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102150509) 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, 217107 + ... + 217576.

It is an arithmetic number, because the mean of its divisors is an integer number (15648624).

Almost surely, 2^102150505 is an apocalyptic number.

It is an amenable number.

102150505 is a deficient number, since it is larger than the sum of its proper divisors (23038487).

102150505 is an equidigital number, since it uses as much as digits as its factorization.

102150505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434735.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 102150505 is about 10106.9532995854. The cubic root of 102150505 is about 467.4625667073.

The spelling of 102150505 in words is "one hundred two million, one hundred fifty thousand, five hundred five".