102205342 has 4 divisors (see below), whose sum is σ = 153308016. Its totient is φ = 51102670.

The previous prime is 102205339. The next prime is 102205361. The reversal of 102205342 is 243502201.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25551334 + ... + 25551337.

It is an arithmetic number, because the mean of its divisors is an integer number (38327004).

Almost surely, 2^102205342 is an apocalyptic number.

102205342 is a deficient number, since it is larger than the sum of its proper divisors (51102674).

102205342 is an equidigital number, since it uses as much as digits as its factorization.

102205342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51102673.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 102205342 is about 10109.6657709343. The cubic root of 102205342 is about 467.5462003585.

Adding to 102205342 its reverse (243502201), we get a palindrome (345707543).

The spelling of 102205342 in words is "one hundred two million, two hundred five thousand, three hundred forty-two".