142306530446 has 4 divisors (see below), whose sum is σ = 213459795672. Its totient is φ = 71153265222.

The previous prime is 142306530439. The next prime is 142306530493. The reversal of 142306530446 is 644035603241.

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

It is a super-2 number, since 2×142306530446² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 35576632610 + ... + 35576632613.

It is an arithmetic number, because the mean of its divisors is an integer number (53364948918).

Almost surely, 2^142306530446 is an apocalyptic number.

142306530446 is a deficient number, since it is larger than the sum of its proper divisors (71153265226).

142306530446 is an equidigital number, since it uses as much as digits as its factorization.

142306530446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71153265225.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 142306530446 in words is "one hundred forty-two billion, three hundred six million, five hundred thirty thousand, four hundred forty-six".