142004401 has 32 divisors (see below), whose sum is σ = 183916800. Its totient is φ = 108662400.

The previous prime is 142004399. The next prime is 142004431. The reversal of 142004401 is 104400241.

It is not a de Polignac number, because 142004401 - 2¹ = 142004399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142004431) 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 31 ways as a sum of consecutive naturals, for example, 229845 + ... + 230461.

It is an arithmetic number, because the mean of its divisors is an integer number (5747400).

Almost surely, 2^142004401 is an apocalyptic number.

142004401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142004401 is a deficient number, since it is larger than the sum of its proper divisors (41912399).

142004401 is an equidigital number, since it uses as much as digits as its factorization.

142004401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 142004401 is about 11916.5599482401. The cubic root of 142004401 is about 521.7157343542.

Adding to 142004401 its reverse (104400241), we get a palindrome (246404642).

The spelling of 142004401 in words is "one hundred forty-two million, four thousand, four hundred one".