102435142 has 4 divisors (see below), whose sum is σ = 153652716. Its totient is φ = 51217570.

The previous prime is 102435127. The next prime is 102435187. The reversal of 102435142 is 241534201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 241534201 = 23 ⋅10501487.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25608784 + ... + 25608787.

It is an arithmetic number, because the mean of its divisors is an integer number (38413179).

Almost surely, 2^102435142 is an apocalyptic number.

102435142 is a deficient number, since it is larger than the sum of its proper divisors (51217574).

102435142 is an equidigital number, since it uses as much as digits as its factorization.

102435142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51217573.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 102435142 is about 10121.0247504885. The cubic root of 102435142 is about 467.8963506551.

Adding to 102435142 its reverse (241534201), we get a palindrome (343969343).

The spelling of 102435142 in words is "one hundred two million, four hundred thirty-five thousand, one hundred forty-two".