142719394 has 8 divisors (see below), whose sum is σ = 214386588. Its totient is φ = 71257200.

The previous prime is 142719389. The next prime is 142719419. The reversal of 142719394 is 493917241.

It can be written as a sum of positive squares in 2 ways, for example, as 100300225 + 42419169 = 10015^2 + 6513^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49497 + ... + 52300.

Almost surely, 2^142719394 is an apocalyptic number.

142719394 is a deficient number, since it is larger than the sum of its proper divisors (71667194).

142719394 is a wasteful number, since it uses less digits than its factorization.

142719394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102500.

The product of its digits is 54432, while the sum is 40.

The square root of 142719394 is about 11946.5222554516. The cubic root of 142719394 is about 522.5898828147.

The spelling of 142719394 in words is "one hundred forty-two million, seven hundred nineteen thousand, three hundred ninety-four".