102122254 has 16 divisors (see below), whose sum is σ = 172140192. Its totient is φ = 45083808.

The previous prime is 102122243. The next prime is 102122299. The reversal of 102122254 is 452221201.

It is a super-3 number, since 3×102122254³ (a number of 25 digits) contains 333 as substring.

It is a congruent 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, 84789 + ... + 85984.

It is an arithmetic number, because the mean of its divisors is an integer number (10758762).

Almost surely, 2^102122254 is an apocalyptic number.

102122254 is a deficient number, since it is larger than the sum of its proper divisors (70017938).

102122254 is a wasteful number, since it uses less digits than its factorization.

102122254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170811.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 102122254 is about 10105.5556007574. Note that the first 3 decimals coincide. The cubic root of 102122254 is about 467.4194685272.

Adding to 102122254 its reverse (452221201), we get a palindrome (554343455).

The spelling of 102122254 in words is "one hundred two million, one hundred twenty-two thousand, two hundred fifty-four".