102140342 has 8 divisors (see below), whose sum is σ = 153371856. Its totient is φ = 51016392.

The previous prime is 102140329. The next prime is 102140347. The reversal of 102140342 is 243041201.

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

It is a self number, because there is not a number n which added to its sum of digits gives 102140342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102140347) 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, 24473 + ... + 28340.

It is an arithmetic number, because the mean of its divisors is an integer number (19171482).

Almost surely, 2^102140342 is an apocalyptic number.

102140342 is a deficient number, since it is larger than the sum of its proper divisors (51231514).

102140342 is an equidigital number, since it uses as much as digits as its factorization.

102140342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53782.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 102140342 is about 10106.4505143992. The cubic root of 102140342 is about 467.4470635057.

Adding to 102140342 its reverse (243041201), we get a palindrome (345181543).

The spelling of 102140342 in words is "one hundred two million, one hundred forty thousand, three hundred forty-two".