1422781937 has 2 divisors, whose sum is σ = 1422781938. Its totient is φ = 1422781936.

The previous prime is 1422781891. The next prime is 1422781939. The reversal of 1422781937 is 7391872241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1396965376 + 25816561 = 37376^2 + 5081^2 .

It is a cyclic number.

It is not a de Polignac number, because 1422781937 - 2¹² = 1422777841 is a prime.

Together with 1422781939, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1422781939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711390968 + 711390969.

It is an arithmetic number, because the mean of its divisors is an integer number (711390969).

Almost surely, 2^1422781937 is an apocalyptic number.

It is an amenable number.

1422781937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422781937 is an equidigital number, since it uses as much as digits as its factorization.

1422781937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 44.

The square root of 1422781937 is about 37719.7817729636. The cubic root of 1422781937 is about 1124.7243932600.

The spelling of 1422781937 in words is "one billion, four hundred twenty-two million, seven hundred eighty-one thousand, nine hundred thirty-seven".