102424142 has 4 divisors (see below), whose sum is σ = 153636216. Its totient is φ = 51212070.

The previous prime is 102424111. The next prime is 102424159. The reversal of 102424142 is 241424201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241424201 = 1373 ⋅175837.

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, 25606034 + ... + 25606037.

It is an arithmetic number, because the mean of its divisors is an integer number (38409054).

Almost surely, 2^102424142 is an apocalyptic number.

102424142 is a deficient number, since it is larger than the sum of its proper divisors (51212074).

102424142 is an equidigital number, since it uses as much as digits as its factorization.

102424142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51212073.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 102424142 is about 10120.4813126649. The cubic root of 102424142 is about 467.8796017023.

Adding to 102424142 its reverse (241424201), we get a palindrome (343848343).

The spelling of 102424142 in words is "one hundred two million, four hundred twenty-four thousand, one hundred forty-two".