102251242 has 8 divisors (see below), whose sum is σ = 154053216. Its totient is φ = 50900172.

The previous prime is 102251231. The next prime is 102251249. The reversal of 102251242 is 242152201.

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

It is not an unprimeable number, because it can be changed into a prime (102251249) by changing a digit.

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, 112158 + ... + 113065.

It is an arithmetic number, because the mean of its divisors is an integer number (19256652).

Almost surely, 2^102251242 is an apocalyptic number.

102251242 is a deficient number, since it is larger than the sum of its proper divisors (51801974).

102251242 is a wasteful number, since it uses less digits than its factorization.

102251242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225452.

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

The square root of 102251242 is about 10111.9356208394. The cubic root of 102251242 is about 467.6161809107.

It can be divided in two parts, 102251 and 242, that multiplied together give a palindrome (24744742).

The spelling of 102251242 in words is "one hundred two million, two hundred fifty-one thousand, two hundred forty-two".