102153222 has 48 divisors (see below), whose sum is σ = 229228272. Its totient is φ = 32855040.

The previous prime is 102153217. The next prime is 102153257. The reversal of 102153222 is 222351201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 102153195 and 102153204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70873 + ... + 72299.

It is an arithmetic number, because the mean of its divisors is an integer number (4775589).

Almost surely, 2^102153222 is an apocalyptic number.

102153222 is an abundant number, since it is smaller than the sum of its proper divisors (127075050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102153222 is a wasteful number, since it uses less digits than its factorization.

102153222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573 (or 1570 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 102153222 is about 10107.0877111065. The cubic root of 102153222 is about 467.4667111950.

The spelling of 102153222 in words is "one hundred two million, one hundred fifty-three thousand, two hundred twenty-two".