102250145 has 8 divisors (see below), whose sum is σ = 125311104. Its totient is φ = 80059504.

The previous prime is 102250139. The next prime is 102250193. The reversal of 102250145 is 541052201.

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 102250145 - 2⁶ = 102250081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 217319 + ... + 217788.

It is an arithmetic number, because the mean of its divisors is an integer number (15663888).

Almost surely, 2^102250145 is an apocalyptic number.

It is an amenable number.

102250145 is a deficient number, since it is larger than the sum of its proper divisors (23060959).

102250145 is an equidigital number, since it uses as much as digits as its factorization.

102250145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435159.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 102250145 is about 10111.8813778644. The cubic root of 102250145 is about 467.6145086350.

The spelling of 102250145 in words is "one hundred two million, two hundred fifty thousand, one hundred forty-five".