142798426 has 4 divisors (see below), whose sum is σ = 214197642. Its totient is φ = 71399212.

The previous prime is 142798391. The next prime is 142798427. The reversal of 142798426 is 624897241.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 102030201 + 40768225 = 10101^2 + 6385^2 .

It is not an unprimeable number, because it can be changed into a prime (142798427) 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 as a sum of consecutive naturals, namely, 35699605 + ... + 35699608.

Almost surely, 2^142798426 is an apocalyptic number.

142798426 is a deficient number, since it is larger than the sum of its proper divisors (71399216).

142798426 is an equidigital number, since it uses as much as digits as its factorization.

142798426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71399215.

The product of its digits is 193536, while the sum is 43.

The square root of 142798426 is about 11949.8295385332. The cubic root of 142798426 is about 522.6863277831.

The spelling of 142798426 in words is "one hundred forty-two million, seven hundred ninety-eight thousand, four hundred twenty-six".