142019401 has 8 divisors (see below), whose sum is σ = 147759104. Its totient is φ = 136352160.

The previous prime is 142019399. The next prime is 142019413. The reversal of 142019401 is 104910241.

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

It is a cyclic number.

It is not a de Polignac number, because 142019401 - 2¹ = 142019399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142019441) 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, 14100 + ... + 21973.

It is an arithmetic number, because the mean of its divisors is an integer number (18469888).

Almost surely, 2^142019401 is an apocalyptic number.

It is an amenable number.

142019401 is a deficient number, since it is larger than the sum of its proper divisors (5739703).

142019401 is a wasteful number, since it uses less digits than its factorization.

142019401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36231.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 142019401 is about 11917.1893078863. The cubic root of 142019401 is about 521.7341034104.

Adding to 142019401 its reverse (104910241), we get a palindrome (246929642).

The spelling of 142019401 in words is "one hundred forty-two million, nineteen thousand, four hundred one".