142004641 has 2 divisors, whose sum is σ = 142004642. Its totient is φ = 142004640.

The previous prime is 142004591. The next prime is 142004663. The reversal of 142004641 is 146400241.

It is an a-pointer prime, because the next prime (142004663) can be obtained adding 142004641 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116208400 + 25796241 = 10780^2 + 5079^2 .

It is a cyclic number.

It is not a de Polignac number, because 142004641 - 2⁹ = 142004129 is a prime.

It is not a weakly prime, because it can be changed into another prime (142004141) 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 as a sum of consecutive naturals, namely, 71002320 + 71002321.

It is an arithmetic number, because the mean of its divisors is an integer number (71002321).

Almost surely, 2^142004641 is an apocalyptic number.

It is an amenable number.

142004641 is a deficient number, since it is larger than the sum of its proper divisors (1).

142004641 is an equidigital number, since it uses as much as digits as its factorization.

142004641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 142004641 is about 11916.5700182561. The cubic root of 142004641 is about 521.7160282692.

Adding to 142004641 its reverse (146400241), we get a palindrome (288404882).

The spelling of 142004641 in words is "one hundred forty-two million, four thousand, six hundred forty-one".