142378519 has 8 divisors (see below), whose sum is σ = 151087680. Its totient is φ = 133706496.

The previous prime is 142378513. The next prime is 142378541. The reversal of 142378519 is 915873241.

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

It is not a de Polignac number, because 142378519 - 2¹¹ = 142376471 is a prime.

It is a super-2 number, since 2×142378519² = 40543285345266722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142378513) 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, 1174 + ... + 16915.

It is an arithmetic number, because the mean of its divisors is an integer number (18885960).

Almost surely, 2^142378519 is an apocalyptic number.

142378519 is a deficient number, since it is larger than the sum of its proper divisors (8709161).

142378519 is a wasteful number, since it uses less digits than its factorization.

142378519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18569.

The product of its digits is 60480, while the sum is 40.

The square root of 142378519 is about 11932.2470222503. The cubic root of 142378519 is about 522.1734950277.

The spelling of 142378519 in words is "one hundred forty-two million, three hundred seventy-eight thousand, five hundred nineteen".