1422656138 has 8 divisors (see below), whose sum is σ = 2134920132. Its totient is φ = 711016096.

The previous prime is 1422656129. The next prime is 1422656143. The reversal of 1422656138 is 8316562241.

It can be written as a sum of positive squares in 2 ways, for example, as 1336852969 + 85803169 = 36563^2 + 9263^2 .

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, 150245 + ... + 159432.

Almost surely, 2^1422656138 is an apocalyptic number.

1422656138 is a deficient number, since it is larger than the sum of its proper divisors (712263994).

1422656138 is a wasteful number, since it uses less digits than its factorization.

1422656138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311976.

The product of its digits is 69120, while the sum is 38.

The square root of 1422656138 is about 37718.1141893388. The cubic root of 1422656138 is about 1124.6912437964.

The spelling of 1422656138 in words is "one billion, four hundred twenty-two million, six hundred fifty-six thousand, one hundred thirty-eight".