102001442 has 8 divisors (see below), whose sum is σ = 155595600. Its totient is φ = 50136244.

The previous prime is 102001441. The next prime is 102001453. The reversal of 102001442 is 244100201.

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

It is not an unprimeable number, because it can be changed into a prime (102001441) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 432092 + ... + 432327.

It is an arithmetic number, because the mean of its divisors is an integer number (19449450).

Almost surely, 2^102001442 is an apocalyptic number.

102001442 is a deficient number, since it is larger than the sum of its proper divisors (53594158).

102001442 is an equidigital number, since it uses as much as digits as its factorization.

102001442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864480.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 102001442 is about 10099.5763277476. The cubic root of 102001442 is about 467.2350746219.

Adding to 102001442 its reverse (244100201), we get a palindrome (346101643).

The spelling of 102001442 in words is "one hundred two million, one thousand, four hundred forty-two".