142349338 has 4 divisors (see below), whose sum is σ = 213524010. Its totient is φ = 71174668.

The previous prime is 142349329. The next prime is 142349341. The reversal of 142349338 is 833943241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 833943241 = 97 ⋅8597353.

It can be written as a sum of positive squares in only one way, i.e., 137522529 + 4826809 = 11727^2 + 2197^2 .

It is a junction number, because it is equal to n+sod(n) for n = 142349297 and 142349306.

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 as a sum of consecutive naturals, namely, 35587333 + ... + 35587336.

Almost surely, 2^142349338 is an apocalyptic number.

142349338 is a deficient number, since it is larger than the sum of its proper divisors (71174672).

142349338 is an equidigital number, since it uses as much as digits as its factorization.

142349338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71174671.

The product of its digits is 62208, while the sum is 37.

The square root of 142349338 is about 11931.0241806812. The cubic root of 142349338 is about 522.1378187988.

The spelling of 142349338 in words is "one hundred forty-two million, three hundred forty-nine thousand, three hundred thirty-eight".