102044142 has 24 divisors (see below), whose sum is σ = 223897440. Its totient is φ = 33583680.

The previous prime is 102044093. The next prime is 102044143. The reversal of 102044142 is 241440201.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102044143) 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 11 ways as a sum of consecutive naturals, for example, 34459 + ... + 37302.

It is an arithmetic number, because the mean of its divisors is an integer number (9329060).

Almost surely, 2^102044142 is an apocalyptic number.

102044142 is an abundant number, since it is smaller than the sum of its proper divisors (121853298).

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

102044142 is a wasteful number, since it uses less digits than its factorization.

102044142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71848 (or 71845 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 102044142 is about 10101.6900566192. The cubic root of 102044142 is about 467.3002637473.

Adding to 102044142 its reverse (241440201), we get a palindrome (343484343).

The spelling of 102044142 in words is "one hundred two million, forty-four thousand, one hundred forty-two".