102121255 has 8 divisors (see below), whose sum is σ = 122663232. Its totient is φ = 81618528.

The previous prime is 102121247. The next prime is 102121273. The reversal of 102121255 is 552121201.

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 102121255 - 2³ = 102121247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3744 + ... + 14773.

It is an arithmetic number, because the mean of its divisors is an integer number (15332904).

Almost surely, 2^102121255 is an apocalyptic number.

102121255 is a deficient number, since it is larger than the sum of its proper divisors (20541977).

102121255 is a wasteful number, since it uses less digits than its factorization.

102121255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19625.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 102121255 is about 10105.5061723795. The cubic root of 102121255 is about 467.4179443619.

Adding to 102121255 its reverse (552121201), we get a palindrome (654242456).

The spelling of 102121255 in words is "one hundred two million, one hundred twenty-one thousand, two hundred fifty-five".