142019412 has 12 divisors (see below), whose sum is σ = 331378656. Its totient is φ = 47339800.

The previous prime is 142019399. The next prime is 142019413. The reversal of 142019412 is 214910241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142019413) 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 3 ways as a sum of consecutive naturals, for example, 5917464 + ... + 5917487.

It is an arithmetic number, because the mean of its divisors is an integer number (27614888).

Almost surely, 2^142019412 is an apocalyptic number.

142019412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142019412 is an abundant number, since it is smaller than the sum of its proper divisors (189359244).

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

142019412 is a wasteful number, since it uses less digits than its factorization.

142019412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11834958 (or 11834956 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 142019412 is about 11917.1897694045. The cubic root of 142019412 is about 521.7341168806.

Adding to 142019412 its reverse (214910241), we get a palindrome (356929653).

The spelling of 142019412 in words is "one hundred forty-two million, nineteen thousand, four hundred twelve".