102700242 has 12 divisors (see below), whose sum is σ = 222517230. Its totient is φ = 34233408.

The previous prime is 102700229. The next prime is 102700259. The reversal of 102700242 is 242007201.

It can be written as a sum of positive squares in only one way, i.e., 53714241 + 48986001 = 7329^2 + 6999^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 5705569 = 102700242 / (1 + 0 + 2 + 7 + 0 + 0 + 2 + 4 + 2).

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 5 ways as a sum of consecutive naturals, for example, 2852767 + ... + 2852802.

Almost surely, 2^102700242 is an apocalyptic number.

102700242 is an abundant number, since it is smaller than the sum of its proper divisors (119816988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102700242 is a wasteful number, since it uses less digits than its factorization.

102700242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5705577 (or 5705574 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 102700242 is about 10134.1127880047. The cubic root of 102700242 is about 468.2996382704.

Adding to 102700242 its reverse (242007201), we get a palindrome (344707443).

The spelling of 102700242 in words is "one hundred two million, seven hundred thousand, two hundred forty-two".