102117254 has 8 divisors (see below), whose sum is σ = 153420528. Its totient is φ = 50977080.

The previous prime is 102117247. The next prime is 102117277. The reversal of 102117254 is 452711201.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 39197 + ... + 41720.

It is an arithmetic number, because the mean of its divisors is an integer number (19177566).

Almost surely, 2^102117254 is an apocalyptic number.

102117254 is a deficient number, since it is larger than the sum of its proper divisors (51303274).

102117254 is an equidigital number, since it uses as much as digits as its factorization.

102117254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81550.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 102117254 is about 10105.3082090553. The cubic root of 102117254 is about 467.4118399728.

Adding to 102117254 its reverse (452711201), we get a palindrome (554828455).

The spelling of 102117254 in words is "one hundred two million, one hundred seventeen thousand, two hundred fifty-four".