102042743 has 8 divisors (see below), whose sum is σ = 116159616. Its totient is φ = 88732600.

The previous prime is 102042719. The next prime is 102042751. The reversal of 102042743 is 347240201.

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

It is not a de Polignac number, because 102042743 - 2⁶ = 102042679 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102042763) 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 7 ways as a sum of consecutive naturals, for example, 201413 + ... + 201918.

It is an arithmetic number, because the mean of its divisors is an integer number (14519952).

Almost surely, 2^102042743 is an apocalyptic number.

102042743 is a deficient number, since it is larger than the sum of its proper divisors (14116873).

102042743 is a wasteful number, since it uses less digits than its factorization.

102042743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403365.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 102042743 is about 10101.6208105432. The cubic root of 102042743 is about 467.2981282137.

Adding to 102042743 its reverse (347240201), we get a palindrome (449282944).

The spelling of 102042743 in words is "one hundred two million, forty-two thousand, seven hundred forty-three".